mineral
Pink Feldspar / Rhodochrosite (Tumbled Pink Quartzite)
SiO2 (Quartz) / KAlSi3O8 (Potassium Feldspar)
Hardness: 6 to 7 on Mohs scale. Color: Pink to reddish-pink. Luster: Vitreous to dull. Cleavage: Poor (if quartz/chert) to perfect in 2 directions (if feldspar). Specific gravity: ~2.6-2.7.
- Hardness
- 6 to 7 on Mohs scale
- Color
- Pink to reddish-pink
- Luster
- Vitreous to dull
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Physical properties
Hardness: 6 to 7 on Mohs scale. Color: Pink to reddish-pink. Luster: Vitreous to dull. Cleavage: Poor (if quartz/chert) to perfect in 2 directions (if feldspar). Specific gravity: ~2.6-2.7.
Formation & geological history
Forms in granitic pegmatites, hydrothermal veins, or through metamorphic processes where iron oxides or manganese trace elements impart a pink tint to the host mineral.
Uses & applications
Used primarily as decorative polished stones, tumbled pocket stones, landscaping gravel, and for lapidary lap crafts.
Geological facts
Pink minerals like rose quartz, pink orthoclase feldspar, and rhodonite get their vibrant hues from micro-inclusions of manganese, titanium, or iron oxides trapped during crystal growth.
Field identification & locations
Identified by its distinctive pink color, fine-grained microcrystalline or blocky texture, and hardness capable of scratching glass (if quartz- or feldspar-based). Commonly found in gravel beds, pegmatite deposits, and weathered granite outcrops worldwide.
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Other mineral specimens
Sandstone (with potential mineral staining/concretions)
Arenite (SiO2 based)
sedimentary
Schist
Schist
Metamorphic
Septarian Pebble
Septarian nodule / Concretion
sedimentary
Sandstone with Mineral Veining or Crust
Sedimentary Sandstone (mostly SiO2 with Fe2O3 tinting)
sedimentary
Potassium Feldspar (Orthoclase)
Orthoclase (KAlSi3O8)
mineral
Gypsum (variety Selenite or Alabaster)
Calcium sulfate dihydrate (CaSO4·2H2O)
Mineral