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Peter Cristofono's Photo Gallery

7NA-YG6Hydrozincite : Zn5(CO3)2(OH)6

Madison Lead Mine, Madison, Carroll Co., New Hampshire, USA

Dimensions: 6.5 cm x 6.0 cm x 3.5 cm

White coating of hydrozincite on sphalerite-bearing rock (left) exhibits strong blue-white fluorescence under shortwave UV light (right).
Copyright: © 2018 Peter Cristofono      Photo ID: 899797     Uploaded by: Peter Cristofono   View Count: 6   Approval status: Public galleries    Type: Photo - 5603 x 2256 pixels (12.6 Mpix)

K88-5MXFluorapatite : Ca5(PO4)3F

Ham and Weeks Mine, Wakefield, Carroll Co., New Hampshire, USA

Dimensions: 3.0 cm x 4.0 cm x 3.0 cm

Gray fluorapatite found on the dumps (left) fluoresces bright yellow under shortwave UV (right). Collected July 8. 2018, on an Maine Mineralogical and Geological Society field trip.
Copyright: © 2018 Peter Cristofono      Photo ID: 898962     Uploaded by: Peter Cristofono   View Count: 9   Approval status: Public galleries    Type: Photo - 3297 x 2193 pixels (7.2 Mpix)

EK4-87MAlmandine : Fe2+3Al2(SiO4)3

Ham and Weeks Mine, Wakefield, Carroll Co., New Hampshire, USA

Field of View: 7.3 mm

Almandine crystal embedded in quartz. Field collected July 8, 2018.
Copyright: © 2018 Peter Cristofono      Photo ID: 898592     Uploaded by: Peter Cristofono   View Count: 4   Approval status: Public galleries    Type: Photo - 1403 x 1539 pixels (2.2 Mpix)

Q62-Q1MQuartz : SiO2

Beauregard Mine, Alstead, Cheshire Co., New Hampshire, USA

Field of View: 5.0 mm

Small cavities in albite are not uncommon at this site, but this is the first time I've seen a quartz crystal in one.
Copyright: © 2018 Peter Cristofono      Photo ID: 897427     Uploaded by: Peter Cristofono   View Count: 55   Approval status: Public galleries    Type: Photo - 1901 x 1393 pixels (2.6 Mpix)

39K-3V3Analcime : Na(AlSi2O6)·H2O

Acushnet Quarry, Acushnet, Bristol Co., Massachusetts, USA

Field of View: 3.0 mm

Colorless analcime crystals in white calcite. From a calcite-filled vesicle in an altered diabase (?) dike. Field collected June 23, 2018.
Copyright: © 2018 Peter Cristofono      Photo ID: 896695     Uploaded by: Peter Cristofono   View Count: 10   Approval status: Public galleries    Type: Photo - 1805 x 1316 pixels (2.4 Mpix)

PXT-JF3Strunzite : Mn2+Fe3+2(PO4)2(OH)2·6H2O

Fitzgibbons Mine, Alstead, Cheshire Co., New Hampshire, USA

Field of View: 11.1 mm

Straw-colored sprays of strunzite on quartz. Field of view is 11.1 mm.
Copyright: © 2018 Peter Cristofono      Photo ID: 896500     Uploaded by: Peter Cristofono   View Count: 15   Approval status: Public galleries    Type: Photo - 4272 x 2848 pixels (12.2 Mpix)

URC-0EVRutile : TiO2, Calcite : CaCO3

Acushnet Quarry, Acushnet, Bristol Co., Massachusetts, USA

Field of View: 11.1 mm

Golden-brown rutile needles and minor green chlorite as inclusions in a calcite rhomb. Field of view is 11.1 mm across.
Copyright: © 2018 Peter Cristofono      Photo ID: 896499     Uploaded by: Peter Cristofono   View Count: 14   Approval status: Public galleries    Type: Photo - 4200 x 2435 pixels (10.2 Mpix)

XR8-UE1K Feldspar (Var: Adularia) : KAlSi3O8

Acushnet Quarry, Acushnet, Bristol Co., Massachusetts, USA

Field of View: 14.0 mm

Adularia crystals without the coating of chlorite often seen at this locality. Field collected in 2018.
Copyright: © 2018 Peter Cristofono      Photo ID: 896468     Uploaded by: Peter Cristofono   View Count: 11   Approval status: Public galleries    Type: Photo - 2884 x 2606 pixels (7.5 Mpix)

GDN-2LUMuscovite : KAl2(AlSi3O10)(OH)2

Acushnet Quarry, Acushnet, Bristol Co., Massachusetts, USA

Field of View: 10.4 mm

Muscovite crystals in a cavity in with adularia (visible in background). Field of view is 10.4 mm across. Collected June 23, 2018, on a joint Micromounters of New England / Southeastern Massachusetts Mineral Club field trip.
Copyright: © 2018 Peter Cristofono      Photo ID: 896440     Uploaded by: Peter Cristofono   View Count: 7   Approval status: Public galleries    Type: Photo - 1993 x 2201 pixels (4.4 Mpix)

EV1-4C1Titanite : CaTi(SiO4)O

Acushnet Quarry, Acushnet, Bristol Co., Massachusetts, USA

Largest Crystal Size: 11.5 mm

Twinned titanite crystal. Ex. Janet Cares (1921-2011) collection.
Copyright: © 2018 Peter Cristofono      Photo ID: 896232     Uploaded by: Peter Cristofono   View Count: 8   Approval status: Public galleries    Type: Photo - 750 x 756 pixels (0.6 Mpix)
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