Cordierite gallery

CORDIERITE Gallery Return to Cordierite page. Click on image for larger view
The Richmond. NH Soapstone Quarry cordierite crystals are among the best to be found worldwide. Cordierite weathers rather easily to a greenish white mica, "pinnite." Many of the Richmond cordierite crystals are somewhat altered to this mica state. Occasional blue-gray glassy blebs of un-altered cordierite have been found.
Locality: Soapstone Quarry, Richmond, NH	Locality: Soapstone Quarry, Richmond, NH Specimen Size: 2.8 cm terminated, prismatic, cordierite crystal. Field Collected: Tom Mortimer Catalog No.: 264 Notes: The Richmond cordierite crystals are found on the borders of quartz dikes that cut through the amphibolite soapstone.
Locality: Soapstone Quarry, Richmond, NH	Locality: Soapstone Quarry, Richmond, NH Specimen Size: Another view of specimen 264 above, shows double termination. Field Collected: Tom Mortimer Catalog No.: 264 Notes:
Locality: Soapstone Quarry, Richmond, NH	Locality: Soapstone Quarry, Richmond, NH Specimen Size: 3 cm specimen of intersecting, hexagonal, cordierite crystals in feldspar matrix. Field Collected: Tom Mortimer Catalog No.: 262 Notes:
Locality: Soapstone Quarry, Richmond, NH	Locality: Soapstone Quarry, Richmond, NH Specimen Size: 2.5 cm specimen with nicely terminated, altered cordierite crystal in quartz matrix. Field Collected: Tom Mortimer Catalog No.: 960 Notes:
Locality: Soapstone Quarry, Richmond, NH	Locality: Soapstone Quarry, Richmond, NH Specimen Size: 2.2 cm altered, terminated, cordierite crystal in quartz matrix. Field Collected: Tom Mortimer Catalog No.: 881 Notes:
Locality: Soapstone Quarry, Richmond, NH	Locality: Soapstone Quarry, Richmond, NH Specimen Size: 4 cm specimen. Cordierite crystals in quartz matrix. Field Collected: Tom Mortimer Catalog No.: Notes:
Locality: Soapstone Quarry, Richmond, NH	Locality: Soapstone Quarry, Richmond, NH Specimen Size: 5 cm cordierite crystal on 14 cm specimen. Quartz matrix. Field Collected: Tom Mortimer Catalog No.:
Locality: Surry Road ledge outcrop, Surry, NH	Locality: Surry Road ledge outcrop, Surry, NH Specimen Size: 6 cm specimen of masive blue-gray cordierite with included gedrite blades Field Collected: Tom Mortimer Catalog No.: 1614 Notes: Initially thought this blue-gray mineral might be sekaninaite, but EDS analysis confirmed cordierite
Locality: Soapstone Quarry, Richmond, NH	Locality: South of Soapstone Quarry (Green Balloon Prospect), Richmond, NH Specimen Size: 7 mm cordierite crystal cross-section under going alteration to "pinnite" mica. Field Collected: Tom Mortimer Catalog No.: u207 Notes: Photo annotated to show alteration progression.
Locality: Rhodonite prospect, Tower Hill, Hinsdale, NH	Locality: Rhodonite prospect, Tower Hill, Hinsdale, NH Specimen Size: Pair of glassy, transparent, cordierite crystals in quartz. Largest crystal is 2 mm. Field Collected: Tom Mortimer Catalog No.: u693 Notes: