Full crystallographic database cross-verified against the Crystallography Open Database (COD), mindat.org, and ICDD PDF-4+ — storing space group symmetry, lattice parameters, optical properties, and Ark materials-science application scores. Crystals and minerals overlap significantly, so this database complements the IMA mineral catalog above with deeper atomic-level data.
💎 Spodumene
LiAlSi2O6
Pyroxene Group
Mohs: 6.5 - 7Vitreous, pearly on cleavage surfaces lusterWhite, grey, pink (Kunzite), emerald-green (Hiddenite), yellow (Triphane)C2/c3.18 g/cm³Transparent to translucent
💎 Schorl
NaFe3Al6(BO3)3Si6O18(OH)4
Tourmaline Group
Mohs: 7Vitreous to resinous lusterBlack, brownish-black, rarely bluish-blackR3m3.1 g/cm³Opaque
💎 Fluorapatite
Ca5(PO4)3F
Apatite Group
Mohs: 5Vitreous to subresinous lusterSea-green, blue, violet, yellow, colorlessP63/m3.2 g/cm³Transparent to translucent
💎 Pyromorphite
Pb5(PO4)3Cl
Apatite Group
Mohs: 3.5 - 4Adamantine to resinous lusterBright green, yellow, orange, brown, greyP63/m7.04 g/cm³Subtransparent to translucent
💎 Azurite
Cu3(CO3)2(OH)2
Carbonate Mineral
Mohs: 3.5 - 4Vitreous lusterAzure blue, deep blue to dark blueP21/c3.77 g/cm³Transparent to translucent
💎 Hematite
Fe2O3
Hematite Group
Mohs: 5.5 - 6.5Metallic to splendent lusterSteel-gray to black, reddish-brownR-3c5.26 g/cm³Opaque
💎 Epidote
Ca2(Al2Fe3+)(Si2O7)(SiO4)O(OH)
Epidote Group
Mohs: 6.0 - 7.0Vitreous to resinous lusterPistachio-green, brownish-green, blackP21/m3.4 g/cm³Transparent to nearly opaque
💎 Celestine
SrSO4
Baryte Group
Mohs: 3.0 - 3.5Vitreous, pearly on cleavage lusterColorless, white, light blue, reddishPnma3.97 g/cm³Transparent to translucent
💎 Malachite
Cu2(CO3)(OH)2
Malachite Group
Mohs: 3.5 - 4.0Adamantine to silky lusterBright green, dark green, blackish greenP21/a4.05 g/cm³Translucent to opaque
💎 Anglesite
PbSO4
Baryte Group
Mohs: 2.5 - 3.0Adamantine, resinous, vitreous lusterColorless, white, grey, yellowish, greenishPnma6.38 g/cm³Transparent to opaque
💎 Rhodochrosite
MnCO3
Calcite Group
Mohs: 3.5 - 4.0Vitreous to pearly lusterPink, rose-red, cherry-red, yellowish grey, brownR-3c3.7 g/cm³Transparent to translucent
💎 Cuprite
Cu2O
Cuprite Group
Mohs: 3.5 - 4.0Adamantine, sub-metallic, earthy lusterDark red to cochineal-red, blackish-redPn-3m6.14 g/cm³Transparent to sub-translucent
Mohs: 2Metallic lusterLead-gray to steel-grayPbnm4.63 g/cm³Opaque
💎 Crocoite
PbCrO4
Chromates
Mohs: 2.5 - 3Adamantine to vitreous lusterBright saffron-red to orangeP21/n6 g/cm³Transparent to translucent
💎 Dioptase
CuSiO3 · H2O
Silicates (Cyclosilicates)
Mohs: 5Vitreous to sub-adamantine lusterEmerald-green to dark bluish-greenR-33.31 g/cm³Transparent to translucent
💎 Benitoite
BaTiSi3O9
Silicates (Cyclosilicates)
Mohs: 6.0 - 6.5Vitreous lusterBlue, purple, or colorless; rarely pinkP-62c3.65 g/cm³Transparent to translucent
💎 Almandine
Fe3Al2(SiO4)3
Garnet Group
Mohs: 7.0 - 7.5Vitreous to resinous lusterDeep red, brownish-red, purplish-red to blackIa-3d4.31 g/cm³Transparent to translucent
💎 Cassiterite
SnO2
Rutile Group
Mohs: 6.0 - 7.0Adamantine to metallic lusterBlack, brownish-black, reddish-brown, yellow, or grayP42/mnm6.95 g/cm³Transparent to nearly opaque
💎 Topaz
Al2SiO4(F,OH)2
Topaz group (Nesosilicates)
Mohs: 8.0Vitreous lusterColorless, blue, yellow, pink, orange, brownPbnm3.5 g/cm³Transparent to translucent
💎 Sphalerite
ZnS
Sphalerite group (Sulfides)
Mohs: 3.5 - 4.0Adamantine, resinous lusterYellow, brown, black, red, greenF-43m4.05 g/cm³Transparent to translucent
💎 Zircon
ZrSiO4
Zircon group (Nesosilicates)
Mohs: 7.5Adamantine to vitreous lusterColorless, yellow, grey, reddish-brown, greenI41/amd4.65 g/cm³Transparent to translucent
💎 Aragonite
CaCO3
Aragonite group
Mohs: 3.5 - 4.0Vitreous to resinous lusterWhite, colorless, gray, yellowish, green, bluePmcn2.95 g/cm³Transparent to translucent
💎 Wulfenite
PbMoO4
Scheelite group
Mohs: 2.5 - 3.0Adamantine to resinous lusterOrange-yellow, yellow, honey-yellow, reddish-orangeI41/a6.81 g/cm³Transparent to translucent
💎 Spinel
MgAl2O4
Spinel group
Mohs: 7.5 - 8.0Vitreous lusterRed, blue, green, brown, black, or colorlessFd-3m3.58 g/cm³Transparent to opaque
💎 Beryl
Be3Al2(Si6O18)
Beryl group
Mohs: 7.5-8Vitreous lusterGreen (emerald), blue (aquamarine), yellow (heliodor), pink (morganite), colorlessP6/mcc2.76 g/cm³Transparent to translucent
💎 Corundum
Al2O3
Hematite group
Mohs: 9Vitreous to adamantine lusterGray, blue, red (ruby), yellow, green, purpleR-3c4.02 g/cm³Transparent to translucent
Mohs: 2.5Vitreous lusterColorless, white, yellow, red, blueFm-3m2.16 g/cm³Transparent to translucent
Mohs: 6.0 - 6.5Adamantine to submetallic lusterReddish-brown, red, pale yellow, pale blue, violet, blackP42/mnm4.23 g/cm³Transparent to opaque
Mohs: 4Vitreous lusterPurple, green, yellow, colorless, blue, or greenFm-3m3.18 g/cm³Transparent to translucent
💎 Quartz
SiO₂
Tectosilicates (Silica group)
Mohs: 7Vitreous lusterColorless (pure), purple (amethyst), yellow (citrine), pink (rose quartz), brown/black (smoky quartz)P3₁21 or P3₂212.65 g/cm³Transparent to translucent
