
mineral
White Quartz (Mushroom Carving)
Quartz (Silicon Dioxide - SiO2)
Hardness: 7 on Mohs scale; Color: White to milky; Luster: Vitreous (glassy); Crystal Structure: Hexagonal; Cleavage: None/Conchoidal fracture; Specific Gravity: 2.65
- Hardness
- 7 on Mohs scale
- Color
- White to milky
- Luster
- Vitreous (glassy)
Identified More mineral →
Identify your own rocks.
Get a report just like this from any photo, free.
Physical properties
Hardness: 7 on Mohs scale; Color: White to milky; Luster: Vitreous (glassy); Crystal Structure: Hexagonal; Cleavage: None/Conchoidal fracture; Specific Gravity: 2.65
Formation & geological history
Formed from silica-rich hydrothermal solutions or the cooling of igneous magma. Found in almost all geological environments and ages.
Uses & applications
Used in glassmaking, electronics (piezoelectric properties), abrasives, and as a semi-precious gemstone for carvings, jewelry, and crystal healing collections.
Geological facts
Quartz is the second most abundant mineral in Earth's continental crust. Pure quartz is colorless, but 'Milky Quartz' gets its white color from tiny fluid inclusions trapped during growth.
Field identification & locations
Identify by its hardness (it can scratch glass and steel) and lack of cleavage. Common worldwide, with significant deposits in Brazil and the USA. Collectors value unusual shapes like this mushroom carving.
More like this
Other mineral specimens
Sandstone (with potential mineral staining/concretions)
Arenite (SiO2 based)
sedimentary
Schist
Schist
Metamorphic
Epidote
Epidote | Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH)
metamorphic
Nephrite Jade
Nephrite
Mineral/Rock
Banded Gneiss (River Rock/Pebble)
Gneiss (specifically a banded variety often found as a river rock)
Metamorphic Rock
Green Apatite on Albite
Fluorapatite [Ca5(PO4)3F] on Albite [Na(AlSi3O8)]
mineral