Monazite-(sm)
Monazite-(Sm)
A variety of Minerals
What is Monazite-(sm)?
Monazite-(Sm) is an exceedingly rare representative of the monazite group, with samarium being the dominant rare earth element in its structure. It is the samarium analogue of monazite-(Ce), monazite-(La), and monazite-(Nd). It is only the second known mineral with samarium being the mineral-forming element, after florencite-(Sm). The group contains simple rare earth phosphate minerals with the general formula of ATO4, where A = Ce, La, Nd, or Sm (or, rarely, Bi), and B = P or, rarely, As. The A site may also bear Ca and Th.
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Monazite-(sm) 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.
Monazite-(sm) Localities Map
See where Monazite-(sm) is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Quick Facts
Physical Properties
- Color
- white to yellow
- Density
- 5.51 g/cm³
- Streak
- white
Chemical Properties
- Chemical Formula
- Sm(PO4)
- Elements
- O, P, Sm
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Monazite-(sm) FAQs
How do I identify Monazite-(sm)?
Monazite-(sm) can be identified by its white to yellow color. Look for these key characteristics when examining specimens.
What color is Monazite-(sm)?
Monazite-(sm) typically appears in white to yellow. Color can vary depending on impurities and formation conditions.
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