Bixbyite
A variety of Minerals
What is Bixbyite?
Being a very rare, crystalline mineral, bixbyite is highly sought by mineral collectors. It is particularly prized when in the so-called "matrix" form - a matrix is a fine groundmass that has embedded crystals or larger grains emerging from it. Bixbyite is a manganese iron oxide, but the content of iron can vary significantly across samples. It is mined in the Kalahari Desert, South Africa.
Etymology & Origins
Bixbyite was named for the American mineralogist Maynard Bixby (1853–1935), responsible for its discovery in 1897. It should not be confused with bixbite, a red form of beryl; to avoid confusion, this name has been deprecated from the CIBJO and the IMA.
Uses & Applications
Bixbyite is an uncommon iron manganese oxide mineral whose rarity and interesting structure makes it a favorite amongst gemstone and mineral collectors. In some circumstances it can be used as a manganese ore when combined with other ores.
Healing Properties
Bixbyite is excellent for anyone who needs more energy and stamina, like athletes or those in physical training. It is often referred to as the Right Time crystal because it is said to help a person determine when it is the right time for something such as a change or new relationship. The positive energy from the stone will increase strength and commitment.
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Bixbyite before comparing listings or appraisals.
Size & Weight
Larger, intact specimens usually command higher prices.
Rarity & Demand
Scarce material or popular varieties sell at a premium.
Condition & Finish
Chips, repairs, and heavy wear lower value; clean prep helps.
Treatment & Provenance
Untreated specimens with documented locality are prized.
Bixbyite Localities Map
See where Bixbyite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Associated Chakras
Key Characteristics
Formation of Bixbyite
It is commonly associated with beryl, quartz, spessartine, hematite, pseudobrookite, hausmannite, braunite and topaz in pneumatolytic or hydrothermal veins and cavities and in metamorphic rocks. It can also be found in lithophysal cavities in rhyolite.
Quick Facts
Physical Properties
- Color
- Black
- Hardness (Mohs)
- 6 - 6.5
- Density
- 5.031 g/cm³
- Streak
- Black
- Luster
- Metallic
- Crystal System
- Isometric
Chemical Properties
- Chemical Formula
- Mn3+2O3
- Elements
- Mn, O
Also Known As
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Bixbyite FAQs
How do I identify Bixbyite?
Bixbyite can be identified by its hardness of 6 - 6.5 on the Mohs scale, Black color, Metallic luster, Isometric crystal system. Look for these key characteristics when examining specimens.
What color is Bixbyite?
Bixbyite typically appears in Black. Color can vary depending on impurities and formation conditions.
How hard is Bixbyite?
Bixbyite has a hardness of 6 - 6.5 on the Mohs scale. This gives it moderate hardness.
What is the formation of bixbyite of Bixbyite?
It is commonly associated with beryl, quartz, spessartine, hematite, pseudobrookite, hausmannite, braunite and topaz in pneumatolytic or hydrothermal veins and cavities and in metamorphic rocks. It can also be found in lithophysal cavities in rhyolite.
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