mineral

Mixed Gemstone and Mineral Collection

Mixed Silica and Carbonate minerals (SiO2, CaSO4·2H2O, etc.)

Hardness: 2–7 (Mohs scale), Color: Variegated (purples, greens, blues, whites), Luster: Vitreous to pearly, Crystal structure: Various (Hexagonal, Monoclinic, Cubic)

Identified May 25, 2026More mineral →

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Physical properties

Hardness: 2–7 (Mohs scale), Color: Variegated (purples, greens, blues, whites), Luster: Vitreous to pearly, Crystal structure: Various (Hexagonal, Monoclinic, Cubic)

Formation & geological history

Formed through hydrothermal processes, sedimentary deposition, and volcanic activity over millions of years across various geological environments.

Uses & applications

Educational sets, metaphysical tools, jewelry making, and beginner mineral collecting.

Geological facts

The collection includes Amethyst (the purple variety of quartz), Selenite (the fibrous variety of gypsum), and likely Sodalite and Turquoise-colored stones.

Field identification & locations

Identify by testing hardness; Selenite can be scratched by a fingernail whereas Quartz/Amethyst cannot. Commonly sold in 'treasure' bags at museum gift shops or gem mines.

Other mineral specimens

See all

Sandstone (with potential mineral staining/concretions)

Arenite (SiO2 based)

sedimentary

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

Biotite Schist

Biotite-rich Schist [K(Mg,Fe)3AlSi3O10(F,OH)2]

metamorphic

Green Apatite on Albite

Fluorapatite [Ca5(PO4)3F] on Albite [Na(AlSi3O8)]

mineral