mineral
Mixed Mineral Collection
Multi-mineral Assemblage (Quartz, Jasper, Obsidian, Pyrite, etc.)
Diverse range of hardness (3-7 Mohs), multiple colors (red, green, clear, black), vitreous to dull luster, various crystal systems (hexagonal, monoclinic, amorphous)
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Physical properties
Diverse range of hardness (3-7 Mohs), multiple colors (red, green, clear, black), vitreous to dull luster, various crystal systems (hexagonal, monoclinic, amorphous)
Formation & geological history
Various origins including igneous (obsidian), metamorphic (quartzite), and sedimentary surfaces; likely sourced for educational or decorative mining flumes
Uses & applications
Educational kits, gemstone mining attractions, decorative filler, and lapidary practice for hobbyists
Geological facts
The collection includes various materials like clear quartz crystals, red jasper, green aventurine, shiny brassy pyrite, and black volcanic glass (obsidian)
Field identification & locations
Commonly found in tourist 'gem mining' kits. Identification relies on color, hardness, and fracture patterns (e.g., conchoidal for obsidian/quartz)
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