Strontianite Value, Price, and Jewelry Information


STRONTIANITE: Austria (2.1). Photo © Joel E. Arem, PhD, FGA. Used with permission.

Strontianite is a collector’s oddity, with no spectacular properties to recommend it. Colors are usually pale and there is little fire; in addition, the high birefringence doubles hack facets and kills the brilliance of the stone. Cut strontianites are, however, decidedly uncommon and worth pursuing for their scarcity value.

Strontianite Value

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Strontianite Information

DataValue
NameStrontianite
Crystallography Orthorhombic. Crystals prismatic, often in tapering crystals in sprays and fans: massive. granular.
Colors Colorless, white, gray, yellowish, yellowish brown, greenish,  reddish.
Luster Vitreous to resinous.
Fracture Uneven. Brittle.
Hardness 3.5.
Specific Gravity 3.63 - 3.785, depending on Sr content (vs. Ca).
Birefringence 0.150.
Cleavage Perfect 1 direction.
Dispersion 0.008-0.028.
Stone SizesVery small faceted gems have been cut from small, pale-colored crystals from various localities, especially Germany and Austria. The maximum size is about 2-4 carats, but an occasional larger stone might be encountered.
Luminescence In SW and LW, may be white, Olive green, bluish green, with phosphorescence. Both fluorescent and phosphorescent in X-rays.
Spectral Not diagnostic.
FormulaSrCO3

STRONTIANITE Aragonite Group. Series to Aragonite (CaCO). Witherite (BaCO3)

Optics: a=1.52;β=1.66; γ= 1.67.

Biaxial (-), 2V= 7°.

Occurrence: A low-temperature mineral, in veins, geodes, marls, and sulfide veins.

San Bernardino County, California; Schoharie. New York; Ohio; New Mexico; Texas; Louisiana; South Dakota; Washington.

Scotland; Mexico; India; Austria.

Carleton County, Ontario, Canada; British Columbia.

Canada; Germany: major deposits.

Pennsylvania; small crystals.

Comments: Strontianite is a collector’s oddity, with no spectacular properties to recommend it. Colors are usually pale and there is little fire; in addition, the high birefringence doubles hack facets and kills the brilliance of the stone. Cut strontianites are, however, decidedly uncommon and worth pursuing for their scarcity value.

Name: From the town in Scotland where the mineral was first found.