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Strontianite crystals - click for larger pic
Strontianite crystals
Peter Tarassoff sp.
Photo by Violet Anderson
© Royal Ontario Museum

Strontianite crystals - click for larger pic
Strontianite crystals
© Doug Merson

Strontianite crystals - click for larger pic
Strontianite crystals
© Doug Merson

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Home > Mineral Descriptions > Strontianite - (3 Photos)



Strontianite
SrCO3

     At MSH, strontianite is a rare mineral in igneous breccia cavities and hornfels. It displays weak white fluorescence under SW and LW.

PHYSICAL CHARACTERISTICS:

Color varies from colorless to white.
Luster is vitreous to silky.
Diaphaneity is transparent to translucent, opaque on white crystals.
Crystal System is orthorhombic; Pmcn.
Crystal Habits include the sharp tabular twinned crystals to 4 mm and
   radiating sprays of acicular crystals to 12mm in length.
Cleavage {110} is almost perfect.
Fracture is uneven to subconchoidal.
Hardness is 3.5
Specific Gravity is approximately 3.8 g/cm3.
Streak is white.
Associated Minerals include aegirine, amphibole group, analcime,
   calcite, catapleiite, chlorite group, donnayite, fluorite, harmotome,
   marcasite, natrolite, pyrite, pyrrhotite, rhodochrosite, siderite,
   titanite and vinogradovite.
Distinguishing Features: Crystal habit.
Origin: Named in 1791 after the town in Scotland where the mineral
   was found.

CLASSIFICATION:

Dana System
# 14.1.3.3

Strunz Classification
# V/B.04-20

REFERENCES:
MinRec 21:341 (1990), Dana 8:445-446 (1997)

DISTRIBUTION AND RARITY AT MONT SAINT-HILAIRE:

MSH
¤¤¤

PE
--

AP
--

MX
--

SS
--

MC
--

HF
¤¤

BR
¤¤

SX
--

FR
--

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