Image: <bdi><a href="https://www.wikidata.org/wiki/Q126871368" class="extiw" title="d:Q126871368"><span title="photographer from the United States">Darla Sondrol</span></a></bdi> (CC0)
orthorhombicuncommonOxides
Diaspore
AlO(OH)
The image displays whitish, flaky to bladed diaspore crystals, approximately 5 cm across, associated with green chlorite.
Diaspore Physical Properties
Mohs Hardness
6.5Crystal System
orthorhombicLuster
vitreousStreak Color
whiteCleavage
Perfect on {010}, good on {110}, distinct on {100}Fracture
unevenSpecific Gravity
3.3Colors
white, gray, colorless, yellowish, greenish, brownish, pink, violetTransparency
transparentType Locality
Chester, MassachusettsMineral Group
OxidesUses
gemstone, minor_aluminum_ore, collectorAssociated Minerals
chloriteRarity
uncommonGeological Context
Diaspore typically forms in bauxite deposits, metamorphic rocks (such as emery deposits), and hydrothermal alteration zones, often as a product of aluminum-rich rock alteration.
