Amherst, Hillsborough Co., New Hampshire, USA

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Albite : Na[AlSi₃O₈]
	Joppa Hill, Amherst, Hillsborough Co., New Hampshire, USA 4 mm crystal. From Bedford. P. Cristofono specimen and photo.
© 2008 Peter Cristofono	Photo ID: 100370 View Count: 171
Albite (Var: Oligoclase) : (Na,Ca)[Al(Si,Al)Si₂O₈], Microcline : K[AlSi₃O₈]
	Palm & Kolehmainen Quarry, Amherst, Hillsborough Co., New Hampshire, USA Off-white oligoclase crystals to about 2 cm with salmon-colored microcline. Harvard Mineralogical Museum specimen. Field collected 1938.
© 2009 Peter Cristofono	Photo ID: 222733 View Count: 63
Apatite-(CaF) : Ca₅[F\|(PO₄)₃]
	Joppa Hill, Amherst, Hillsborough Co., New Hampshire, USA 4 mm greenish blue crystal. White fluorescence under SW ultraviolet light. From the main Amherst prospect. P. Cristofono specimen and photo.
© 2005 Peter Cristofono	Photo ID: 31782 View Count: 265
Chalcedony, Quartz : SiO₂
	Joppa Hill, Amherst, Hillsborough Co., New Hampshire, USA Blue and purple chalcedony in a cavity in quartz. From a quartz vein prospect on Joppa Hill in Amherst. View is about 3.5 mm across. Found in material field collected by Joe Mulvey, 2005. P. Cristofono specimen and photo.
© 2008 Peter Cristofono	Photo ID: 30992 View Count: 291
Chalcopyrite : CuFeS₂
	Joppa Hill, Amherst, Hillsborough Co., New Hampshire, USA Tarnished chalcopyrite in quartz. From Amherst. Field of view is about 2 mm across. P. Cristofono specimen and photo.
© 2008 Peter Cristofono	Photo ID: 198162 View Count: 57
Chamosite : (Fe²⁺,Mg)₅Al[(OH)₈\|AlSi₃O₁₀]
	Joppa Hill, Amherst, Hillsborough Co., New Hampshire, USA Dark green chamosite in albite. SEM-EDS analyzed, 2008. From Bedford. P. Cristofono specimen and photo.
© 2009 Peter Cristofono	Photo ID: 205739 View Count: 66
Clinozoisite : {Ca₂}{Al₃}[O\|OH\|SiO₄\|Si₂O₇]
	Joppa Hill, Amherst, Hillsborough Co., New Hampshire, USA Colorless and pale green clinozoisite. Crystal is 3 mm. From Amherst. P. Cristofono specimen & photo. Field collected 2004.
© 2004 Peter Cristofono	Photo ID: 20478 View Count: 433
Clinozoisite : {Ca₂}{Al₃}[O\|OH\|SiO₄\|Si₂O₇]
	Joppa Hill, Amherst, Hillsborough Co., New Hampshire, USA 5 mm crystal with grossular and quartz. From Amherst. (P. Cristofono specimen and photo.)
© 2005 Peter Cristofono	Photo ID: 32166 View Count: 233
Clinozoisite : {Ca₂}{Al₃}[O\|OH\|SiO₄\|Si₂O₇]
	Joppa Hill, Amherst, Hillsborough Co., New Hampshire, USA 3 mm terminated crystal. From Amherst. (P. Cristofono specimen and photo. Field collected 2005.)
© 2005 Peter Cristofono	Photo ID: 41036 View Count: 203
Clinozoisite : {Ca₂}{Al₃}[O\|OH\|SiO₄\|Si₂O₇]
	Joppa Hill, Amherst, Hillsborough Co., New Hampshire, USA 7 mm crystals. Don Swenson specimen, field collected 2004. From Amherst. Photograph by Peter Cristofono.
© 2007 Peter Cristofono	Photo ID: 86258 View Count: 107