Thomasclarkite-(y)
Thomasclarkite-(Y)
A variety of Minerals
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What is Thomasclarkite-(y)?
Thomasclarkite-(Y) is a rare mineral which was known as UK-93 until 1997, when it was renamed in honour of Thomas H. Clark (1893–1996), McGill University professor. The mineral is one of many rare-earth element minerals from Mont Saint-Hilaire. The only reported occurrence is in an alkalic pegmatite dike in an intrusive gabbro-nepheline syenite.
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Thomasclarkite-(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.
Thomasclarkite-(y) Localities Map
See where Thomasclarkite-(y) is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Quick Facts
Physical Properties
- Color
- Honey-yellow to white
- Hardness (Mohs)
- 2 - 3
Chemical Properties
- Chemical Formula
- (Na,Ce)(Y,REE)(HCO3)(OH)3 · 4H2O
- Elements
- C, Ce, H, Na, O, Y
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Thomasclarkite-(y) FAQs
How do I identify Thomasclarkite-(y)?
Thomasclarkite-(y) can be identified by its hardness of 2 - 3 on the Mohs scale, Honey-yellow to white color. Look for these key characteristics when examining specimens.
What color is Thomasclarkite-(y)?
Thomasclarkite-(y) typically appears in Honey-yellow to white. Color can vary depending on impurities and formation conditions.
How hard is Thomasclarkite-(y)?
Thomasclarkite-(y) has a hardness of 2 - 3 on the Mohs scale. This makes it a soft mineral that can be scratched easily.
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