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Elbaite from
Schoonmaker Mine (Cramer Mine), Strickland pegmatite (Strickland-Cramer Quarry; Strickland-Cramer Mine; Strickland-Cramer Feldspar-Mica Quarries), Collins Hill, Portland, Middlesex Co., Connecticut, USA

Locality type:Mine
Classification
Species:Elbaite
Formula:Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Comments:Some of the crystals had a deep pink center and were colorless on the outside, and some were pink at one end and green on the other. Some occurred in an unusual form, as pellets of a quarter inch or more in diameter. Some opaque tourmaline was found in triangular crystals of about 1/2 x 3”, which were a yellowish green on the outside and greyish white inside. (Little, 1942). Tourmalines in five colors were easily collected ranging from green through yellow to purple, blue, and black either from one end of a crystal to the other end or perhaps in a series of different colored crystals in parallel position with each other...A small one-half inch long bicolored pink and green tourmaline crystal with pink interior and outer edge green, like a watermelon, was picked up from the dump of the Schoonmaker mine. (Seaman, 1947)
Colour:green, pink, yellow, purple, blue
Quality for species:Good crystals or rich for species - important (!)
Abundance at site:Common
Confirmation
Validity:Believed Valid
References
References:Harold Moritz collection; Little (1942); Seaman, David W. (1947): Reminiscing On Collins Hill, Portland, Conn. Rocks & Minerals, vol. 22, no. 8, pp. 732-3.
Associated Minerals Based on Photo Data:
Heliodor2 photos of Elbaite associated with Heliodor at this locality.
Data
Mineral Data:Click here to view Elbaite data
Locality Data:Click here to view Schoonmaker Mine (Cramer Mine), Strickland pegmatite (Strickland-Cramer Quarry; Strickland-Cramer Mine; Strickland-Cramer Feldspar-Mica Quarries), Collins Hill, Portland, Middlesex Co., Connecticut, USA
Photo GalleryView Gallery (4 photos)
Nearest other occurrences of Elbaite
0.1km (0.1 miles) Strickland Quarry (Eureka Quarry), Strickland pegmatite (Strickland-Cramer Quarry; Strickland-Cramer Mine; Strickland-Cramer Feldspar-Mica Quarries), Collins Hill, Portland, Middlesex Co., Connecticut, USA
2.9km (1.8 miles) Walden Gem Quarry, Portland, Middlesex Co., Connecticut, USA
4.0km (2.5 miles) Riverside Quarry (Western Quarry), White Rock Mining District, Middletown, Middlesex Co., Connecticut, USA
4.4km (2.7 miles) White Rocks Quarry (Consolidated Quarry), White Rock Mining District, Middletown, Middlesex Co., Connecticut, USA
5.1km (3.1 miles) Simpson Quarry (Wiarda Quarry), South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
5.5km (3.4 miles) Hollister prospects (Hollister Quarry), South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
8.6km (5.3 miles) Eureka Quarry, East Hampton (Chatham), Middlesex Co., Connecticut, USA
8.9km (5.5 miles) Brack Gem prospect (Brack prospect), East Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
10.3km (6.4 miles) Anderson No. 1 Mica Mine (Swanson Mine; Swanson Lithia Mine), East Hampton (Chatham), Middlesex Co., Connecticut, USA
13.1km (8.1 miles) Gillette Quarry (J-J Mine; Haddam Neck Quarry), Haddam Neck, Haddam, Middlesex Co., Connecticut, USA
 
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