White Crystals
Clear Quartz
Quartz Family
Clear quartz, also called rock crystal, is silicon dioxide in its purest, most transparent form — no significant trace elements, no color centers, just SiO2 grown slowly enough to form large, optically clean crystals. It's one of the most common minerals in Earth's crust (quartz makes up roughly 12% of it by volume), but genuinely flawless, well-terminated clear crystals are still cut for jewelry and display because clean growth over a large size is uncommon even though the raw material is everywhere.
Selenite
Gypsum Family
Selenite is the clear-to-white, fibrous or bladed variety of gypsum — calcium sulfate dihydrate — and it's the single softest crystal commonly sold in the crystal trade: at Mohs 2, it's soft enough to scratch with a fingernail, which is both its most distinctive identifying feature and the reason it needs genuinely different care than the quartz-family stones most people are used to. Its name comes from Selene, the Greek moon goddess, for its pale, softly glowing luster.
Moonstone
Feldspar Group
Moonstone is a variety of feldspar — specifically orthoclase or, in the finest material, adularia — and the soft, floating blue-white glow it's named for (called adularescence) isn't a surface coating or dye at all: it's an optical effect caused by light scattering off microscopically thin, alternating layers of two different feldspar minerals that separated inside the crystal as it cooled slowly underground, a process mineralogists call exsolution.
Opal
Silica Mineraloid
Like obsidian, opal is technically a mineraloid rather than a true crystalline mineral — but unlike obsidian's amorphous glass, opal's structure is a regular, ordered arrangement of microscopic silica spheres, and it's that structure, not any pigment, that produces precious opal's famous rainbow play-of-color. Opal also uniquely carries water within its own structure (roughly 3-21% by weight), which makes it one of the more fragile, care-sensitive gems in common use — a genuine physical vulnerability, not folklore, tied directly to a real 19th-century superstition that dented its reputation for decades.
Snowflake Obsidian
Volcanic Glass
Snowflake obsidian is plain volcanic glass with a genuine second mineral growing inside it: white, radiating clusters of cristobalite, a separate silica mineral that crystallized in localized patches while the surrounding glass was still cooling, producing patterns that look for all the world like snowflakes frozen mid-fall against a black background. This localized recrystallization process, called devitrification, is the same broad phenomenon geologists watch for elsewhere in volcanic glass, just visually striking enough here to have created its own named gem variety.
Howlite
Borate Mineral
Howlite has an unusual claim among stones on this site: in its own natural state it's white-to-grey with dark veining and largely unremarkable, but it has become one of the single most commonly dyed imitation materials in the entire crystal trade, because its porous white structure takes dye exceptionally well and its natural veining pattern can pass for turquoise's matrix or lapis lazuli's calcite veining once colored. First described in 1868 and named for the Canadian geologist Henry How, it carries no ancient tradition of its own — its modern reputation is almost entirely tied to standing in for other, more historically significant stones.
Angel Aura Quartz
Quartz Family (Treated)
Angel aura quartz starts as ordinary natural clear quartz and then undergoes an entirely artificial process: a lab bonds a microscopically thin layer of vaporized platinum and/or silver onto the crystal's surface under high heat and vacuum, producing a pale, silvery-white iridescent sheen. This is 100% a disclosed lab treatment, not a natural mineral color or variety — a distinction worth being upfront about, since the base clear quartz is genuinely natural even though the finished iridescent surface is entirely man-made.
Dalmatian Jasper
Jasper (Altered Rock)
Dalmatian jasper isn't technically pure jasper at all — it's more accurately described as an igneous rock, a mix of quartz and albite feldspar scattered with black spots, which depending on the specific source are either black tourmaline (schorl) or manganese oxide inclusions. The name, obviously, comes from its resemblance to a Dalmatian dog's spotted coat, a modern crystal-trade naming choice rather than one with any older cultural history.
Zebra Jasper
Jasper (Chalcedony Family)
Zebra jasper's black-and-white striping comes from a genuinely different mechanism than bloodstone's scattered spotting or ocean jasper's orbicular rings: here, dark mineral inclusions (typically hornblende-group minerals) deposit in alternating linear bands against a paler, purer silica base, producing distinctly striped rather than mottled or spotted patterning — the visual source of its name.
Apophyllite
Zeolite-Associated Minerals
Apophyllite gets its name from the Greek apophylliso, "to leaf off," because early mineralogists noticed it tends to flake apart along flat planes when heated — a genuinely distinctive behavior tied to its water content. It's most often seen as glassy, pyramid-terminated colorless-to-green crystals growing in clusters, frequently alongside zeolite minerals in cavities left behind by ancient volcanic activity.
Celestite
Sulfate Minerals
Celestite gets its name from the Latin caelestis, "heavenly," a reference to its characteristic pale sky-blue color rather than to any ancient religious association — the name was assigned by mineralogists in the 18th century. It's also industrially important well beyond decorative use: celestite is the primary commercial ore of strontium, an element used in everything from ceramic magnets to fireworks (strontium salts produce the red color in many red fireworks).
Datolite
Rare Silicate Minerals
Datolite is a calcium borosilicate mineral best known among specimen collectors for the fine-grained, almost porcelain-like nodules it forms in Michigan's copper-mining region, often studded with tiny embedded copper flecks left behind from its formation environment — a genuinely distinctive combination that ties the mineral directly to the region's mining history.
Spirit Quartz
Quartz Family
Spirit quartz (also called cactus quartz) is a distinctive quartz variety where a central crystal point is entirely covered in a dense layer of tiny, druzy secondary crystal points, giving each specimen a fuzzy, textured surface unlike the smooth faces of ordinary quartz — it's sourced almost exclusively from a single region of South Africa, and the purple (amethyst-colored) variety is by far the most commonly sold form.
Hackmanite
Rare Silicate Minerals
Hackmanite is a variety of sodalite genuinely famous for a real, documented and scientifically studied property: tenebrescence, meaning it changes color reversibly when exposed to different light sources — freshly mined or UV-exposed material can shift from pale gray or white to vivid purple or pink, then fade back over time in sunlight, a cycle that can be repeated indefinitely.
Halite
Salt Minerals
Halite is, quite simply, the mineral form of ordinary table salt — the same sodium chloride chemistry, just grown as natural crystals rather than produced industrially. Pink halite specifically, most famously associated with Pakistan's Khewra salt mine, gets its color from a genuinely different source than most colored minerals on this site, and its extreme water solubility is the single most important physical property to know before handling it.
Hemimorphite
Rare Silicate Minerals
Hemimorphite gets its name from a genuinely distinctive crystallographic property — its crystals are "hemimorphic," meaning the two ends of the crystal are shaped differently from each other, a real structural asymmetry rather than a marketing description. It typically forms as pale blue-to-blue-green botryoidal (grape-like, rounded) crusts, often found in the same weathered zinc-ore deposits that produce smithsonite.
Lemurian Seed Quartz
Quartz Family
Lemurian seed quartz is a trade name for clear-to-milky quartz crystals showing a distinctive pattern of fine, regularly spaced horizontal striations running around the crystal — the name references Lemuria, a hypothetical lost continent proposed in 19th-century pseudo-scientific writing and later adopted into various New Age traditions, though the striation pattern itself is a genuine, observable mineralogical feature regardless of the name's mythological origin.
Magnesite
Carbonate Minerals
Magnesite is a white-to-cream magnesium carbonate mineral, chemically the magnesium counterpart to calcite and dolomite — most commonly seen in the crystal trade as a porous, chalky white nodular material that closely resembles howlite, and the two are frequently confused (or one substituted for the other) given their similar appearance and shared tendency to take dye readily.
Merlinite
Manganese-Silica Rocks
Merlinite is a trade name, not a formal mineralogical species — it describes a mottled black-and-white (or gray) rock, typically a mixture of chalcedony and manganese oxide (psilomelane/wad), sold under a name deliberately chosen for its association with the legendary wizard, purely for marketing appeal within the crystal trade rather than any historical connection.
Muscovite
Mica Group Minerals
Muscovite is the most common mica mineral, forming thin, flexible, transparent sheets that were historically used as a genuine substitute for window glass in Russia — the name comes directly from "Muscovy glass," referencing the country where this practical use was widespread before modern glass manufacturing became affordable.
Petalite
Silicates
Petalite holds a genuinely notable place in the history of chemistry: it was the mineral in which Swedish chemist Johan August Arfwedson first identified the element lithium in 1817, meaning this soft, pale silicate is where an entire branch of modern battery chemistry effectively began.
Rainbow Moonstone
Feldspar Group
Rainbow moonstone is a genuinely mineralogical mismatch with a name — the material sold under this label is almost always labradorite feldspar showing a blue-to-multicolor sheen, not true moonstone (which is orthoclase or albite feldspar with adularescence), and the two produce their shimmer through related but distinct optical mechanisms.
Tremolite
Amphibole Group
Tremolite requires an honest safety note before any metaphysical framing: in its fibrous, asbestiform habit, tremolite is a recognized form of asbestos and a documented health hazard when fibers become airborne — the massive, compact, cabochon-grade material sold in the crystal trade is a different growth habit of the same mineral and is not asbestiform, but the distinction matters and shouldn't be glossed over.
Aragonite Star Cluster
Carbonates
Aragonite star clusters — sometimes nicknamed 'sputnik' clusters for their resemblance to the spiky Soviet satellite — are a striking example of crystal twinning: individual orthorhombic aragonite crystals repeatedly twin in a cyclic pattern that fools the eye into seeing a pseudo-hexagonal, radiating starburst shape, from a mineral that isn't hexagonal at all.
Silver Sheen Obsidian
Volcanic Glass
Silver sheen obsidian forms through the identical gas-bubble mechanism as its gold-toned relative, and which color a given piece shows down to the specific density and size of the aligned bubble layers — a subtle structural difference producing a genuinely cooler, whiter shimmer instead of gold.
Chrysanthemum Stone
Concretions
Chrysanthemum stone displays genuine radiating mineral crystal clusters within a dark limestone or dolomite matrix that closely resemble flower blooms when the rock is cut and polished — a natural formation, not carving, that has made this material a long-prized ornamental stone in China specifically.
Common Opal
Opal
Common opal (sometimes called 'potch' in the trade) makes up the overwhelming majority of all opal actually mined worldwide, even though it's the version almost nobody names specifically — most opal, whatever the color, simply lacks the ordered internal structure needed to produce play of color, and that unglamorous majority is what 'common opal' honestly refers to.
Sardonyx
Chalcedony (Banded Agate/Onyx Family)
Sardonyx is a banded chalcedony combining two older gem-trade names into one: 'sard,' a brownish-red variety of chalcedony, layered in straight parallel bands with 'onyx,' the white-to-black banded variety — the result is a stone whose contrasting flat layers made it, more than almost any other gem material, the preferred medium for carved intaglios and cameos in the ancient world, since a carver could cut through a light band to expose a dark one beneath (or the reverse) and get crisp, deliberate contrast for free.
Banded Agate
Chalcedony (Agate Family)
Banded agate is the broad, generic form of one of the oldest named gemstones in recorded history — agate's parallel or concentric bands, formed by successive layers of silica deposited inside a volcanic gas cavity, gave the mineral its name nearly 2,300 years ago and remain its single most recognizable feature today, whether in a plain natural grey-and-brown specimen or the vividly dyed slices sold throughout the modern crystal trade.
Milky Quartz
Quartz Family
Milky quartz is the cloudy, opaque-to-translucent white variety of quartz that was, for most of the mineral trade's history, considered the unremarkable leftover material separated out from clearer, more prized quartz — it's only become popular in its own right fairly recently, as an inexpensive, widely available beginner stone, and it's worth being clear that its softness reputation is often mixed up with selenite's in casual crystal-shop marketing, when the two are physically nothing alike.
Phenakite
Silicate (Beryllium Silicate)
Phenakite shares its name's origin story with sphalerite in an oddly parallel way: it comes from the Greek 'phenakos,' meaning deceiver, because colorless phenakite crystals were repeatedly mistaken for quartz or even diamond by early mineralogists before being properly identified as a distinct beryllium silicate — a rare gem mineral genuinely easy to overlook given how convincingly it can mimic more familiar clear stones.
Scolecite
Silicate (Zeolite Group)
Scolecite belongs to the zeolite mineral family and forms in delicate, radiating sprays of fine white or colorless needle-like crystals — a genuinely fragile, distinctive habit that also gave the mineral its name, since heating or blowing on a specimen with a blowpipe causes it to curl and writhe like a worm as its structural water is driven off.
Stilbite
Silicate (Zeolite Group)
Stilbite is another zeolite mineral, best known for a genuinely distinctive crystal habit — sheaf-like or bowtie-shaped clusters with a pearly luster on their cleavage faces — that made it one of the more recognizable specimens from the same Indian basalt province responsible for most of the world's scolecite and natrolite as well.
Natrolite
Silicate (Zeolite Group)
Natrolite rounds out the trio of zeolite minerals covered on this site alongside scolecite and stilbite, distinguished by its own slender, prismatic crystal habit and, in specimens from a particular Canadian locality, a genuine and rather striking orange fluorescence under ultraviolet light.
Okenite
Silicate Mineral
Okenite is instantly recognizable among mineral collectors for one specific reason: it forms soft, fibrous, ball-like clusters that genuinely resemble cotton balls or popcorn more than anything typically pictured as a 'crystal,' an unusual habit distinctive enough that it needs no other identifying feature once you've seen a specimen.
White minerals, like clear ones, generally result from the absence of any strong light-absorbing trace element or structural defect — but where clear stones are typically transparent, white stones usually owe their opaque, milky appearance to internal light scattering off countless microscopic crystal boundaries or inclusions rather than to any color-causing chemistry at all.
Selenite, a variety of gypsum, is technically colorless in its purest, most crystalline form, but the white, satiny appearance most commonly sold under the name comes from fine parallel fibrous structure scattering light — a genuinely different optical effect from the color-diffraction seen in moonstone, even though casual buyers sometimes lump the two together as similarly "glowing" white stones.
Howlite's white-to-gray coloring, along with its distinctive gray-black veining, comes from its natural calcium borosilicate structure combined with trace mineral impurities in the veining itself — howlite is also one of the most commonly dyed minerals in the crystal trade, since its porous structure takes dye readily, making it a frequent (and cheap) stand-in for turquoise once dyed blue, a substitution worth knowing about specifically because howlite's natural, undyed state is this pale white.
White moonstone's glow, adularescence, comes from an exsolution process during slow underground cooling that separated two feldspar minerals into fine internal layers — an entirely different physical setup from selenite's fibrous light-scattering or howlite's simple lack of strong coloring chemistry, even though all three read loosely as "glowing white stones" to a casual shopper.
White or milky quartz, a common and inexpensive variety distinct from the fully transparent "clear" quartz discussed on its own color page, gets its cloudy appearance from countless microscopic fluid inclusions and tiny internal fractures trapped during crystal growth — genuinely the same silicon dioxide chemistry as clear quartz, differing only in how much internal scattering material got incorporated as the crystal formed.
Angelite, a compressed, massive form of anhydrite (calcium sulfate, chemically related to gypsum and therefore to selenite), typically shows a pale blue-white rather than a pure white, but belongs on the lighter end of this color range — its coloring comes from a comparatively subtle combination of trace strontium and other minor impurities within the anhydrite structure.
White stones as a category, similar to black stones, draw on several unrelated physical mechanisms to reach the same general visual result — internal light scattering off fibrous structure (selenite), off fluid inclusions (milky quartz), off layered feldspar (moonstone), or simply the absence of strong coloring chemistry combined with a naturally pale mineral structure (howlite, angelite) — worth knowing if you're shopping by look rather than by species.
Crystal properties described here come from metaphysical tradition and are for wellbeing inspiration and entertainment — not medical advice. See our full disclaimer.