Perettiite-(y)
Perettiite-(Y)
A variety of Minerals
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What is Perettiite-(y)?
Perettiite-(Y) is a complex silicate–borate mineral with the formula Y2Mn4FeSi2B8O24. It was first discovered in 2015 by Adolf Peretti of the Gemresearch Swisslab (GRS). It was found as inclusions in a phenakite crystal from Mogok, Myanmar. Perettiite-(Y) was approved for IMA (International Mineralogical Association) status in 2015.
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Perettiite-(y) 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.
Perettiite-(y) Localities Map
See where Perettiite-(y) is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
More Images
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Quick Facts
Physical Properties
- Color
- Yellow
- Hardness (Mohs)
- 7
- Density
- 4.533 g/cm³
Chemical Properties
- Chemical Formula
- Y2Mn4FeSi2B8O24
- Elements
- B, Fe, Mn, O, Si, Y

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Perettiite-(y) FAQs
How do I identify Perettiite-(y)?
Perettiite-(y) can be identified by its hardness of 7 on the Mohs scale, Yellow color. Look for these key characteristics when examining specimens.
What color is Perettiite-(y)?
Perettiite-(y) typically appears in Yellow. Color can vary depending on impurities and formation conditions.
How hard is Perettiite-(y)?
Perettiite-(y) has a hardness of 7 on the Mohs scale. This makes it a relatively hard mineral suitable for jewelry.


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