mineral
Mineral and Rock Collection (Assorted)
Mixed collection including Quartz (SiO2), Jasper (SiO2 with impurities), Rose Quartz, and Aventurine
Hardness: 6.5-7 (Mohs scale); Colors: Clear, pink, green, red, mottled; Luster: Vitreous to waxy; Structure: Hexagonal/Trigonal or Microcrystalline
- Hardness
- 6
- Luster
- Vitreous to waxy
Identified More mineral →
Explore Mineral and Rock Collection (Assorted) in the encyclopedia →Identify your own rocks.
Get a report just like this from any photo, free.
Physical properties
Hardness: 6.5-7 (Mohs scale); Colors: Clear, pink, green, red, mottled; Luster: Vitreous to waxy; Structure: Hexagonal/Trigonal or Microcrystalline
Formation & geological history
Most specimens in this set are silicate minerals formed in igneous pegmatites or sedimentary environments through hydrothermal deposition or secondary silica replacement.
Uses & applications
Used primarily for educational purposes, hobbyist collecting, metaphysical practices, and decorative tumbling/polishing.
Geological facts
This collection features several varieties of chalcedony and macrocrystalline quartz. Rose quartz gets its color from trace amounts of titanium, iron, or manganese, while red jasper contains iron oxide inclusions.
Field identification & locations
Identify by testing hardness (quartz will scratch glass) and examining fracture patterns (typically conchoidal). Common worldwide in varied geological terrains.
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
Gypsum (variety Selenite or Alabaster)
Calcium sulfate dihydrate (CaSO4·2H2O)
Mineral
Nephrite Jade
Nephrite
Mineral/Rock
Granite
Granite (Phaneritic intrusive igneous rock)
igneous