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Bustamite from
Jail Hill Road locality (Jail Hill Quarry), Haddam, Middlesex Co., Connecticut, USA

Classification
Species:Bustamite
Formula:CaMn2+(Si2O6)
Comments:When the author discovered a large lens of spessartine at the Jail Hill quarry, in the 1950s, a few good specimens of pink "rhodonite" were collected. Two different shades were associated differently, one with spessartine and calcite (or dolomite), the other with tephroite and pyrophanite. X-ray and spectrographic tests have shown the lighter pink mineral to be bustamite, and the darker one pyroxmangite. In some cases, bustamite is intimately intergrown with johannsenite (probably an exsolution product).
Habit:cleavable masses
Colour:light pink
Quality for species:Poor for species, only of interest for locality collectors. (#)
Abundance at site:Common
Confirmation
Validity:Confirmed
Confirmation Methods:XRD
References
References:Schooner, Richard. (circa 1980s), Untitled manuscript on central Connecticut minerals.
Associated Minerals Based on Photo Data:
Spessartine4 photos of Bustamite associated with Spessartine at this locality.
Tephroite1 photo of Bustamite associated with Tephroite at this locality.
Data
Mineral Data:Click here to view Bustamite data
Locality Data:Click here to view Jail Hill Road locality (Jail Hill Quarry), Haddam, Middlesex Co., Connecticut, USA
Photo GalleryView Gallery (3 photos)
 
Mineral and/or Locality  
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