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Hopkinton, Washington Co., Rhode Island, USA

Detailed Mineral List:

Hematite
Formula:	Fe₂O₃
Locality:	Diamond Hill (Ashaway Village), Ashaway, Hopkinton, Washington Co., Rhode Island, USA







Ilmenite
Formula:	Fe²⁺TiO₃
Locality:	Larsen Granite quarry, Hopkinton, Washington Co., Rhode Island, USA







Microcline
Formula:	KAlSi₃O₈
Locality:	Larsen Granite quarry, Hopkinton, Washington Co., Rhode Island, USA







Montmorillonite
Formula:	(Na,Ca)_0.33(Al,Mg)₂(Si₄O₁₀)(OH)₂ · nH₂O
Locality:	Diamond Hill (Ashaway Village), Ashaway, Hopkinton, Washington Co., Rhode Island, USA







Quartz
Formula:	SiO₂
Locality:	Diamond Hill (Ashaway Village), Ashaway, Hopkinton, Washington Co., Rhode Island, USA






Photo: Quartz from Diamond Hill, Ashaway, Hopkinton, Washington Co., Rhode Island, USA
Quartz var: Amethyst
Formula:	SiO₂
Locality:	Diamond Hill (Ashaway Village), Ashaway, Hopkinton, Washington Co., Rhode Island, USA






Photo: © 2000 John H. Betts. Amethyst from Diamond Hill, Ashaway, Hopkinton, Washington Co., Rhode Island, USA
Quartz var: Milky Quartz
Locality:	Diamond Hill (Ashaway Village), Ashaway, Hopkinton, Washington Co., Rhode Island, USA







Photo: © 2001 John H. Betts. Milky Quartz from Diamond Hill, Ashaway, Hopkinton, Washington Co., Rhode Island, USA

7 entries listed. 5 valid minerals.

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