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EJU-NXK Actinolite ◻Ca₂(Mg_4.5-2.5Fe_0.5-2.5)Si₈O₂₂(OH)₂ , Talc Mg₃Si₄O₁₀(OH)₂

Rock River, Newfane, Windham County, Vermont, USA

Field of View: 60 mm

Actinolite crystals in talc schist

Photo ID: 885449 Uploaded by: John Mark Brigham Upload date: 2018-04-16 View Count: 216 Status: Public galleries Type: Photo - 2860×2860 (8.2 Mpix)

E7J-JCU Actinolite ◻Ca₂(Mg_4.5-2.5Fe_0.5-2.5)Si₈O₂₂(OH)₂ , Talc Mg₃Si₄O₁₀(OH)₂

Rock River, Newfane, Windham County, Vermont, USA

Field of View: 3.5 mm

Actinolite crystal in talc schist

Photo ID: 885448 Uploaded by: John Mark Brigham Upload date: 2018-04-16 View Count: 142 Status: Public galleries Type: Photo - 2048×2048 (4.2 Mpix)

DQ6-HXC Rutile TiO₂ , Quartz SiO₂

Whitingham, Windham County, Vermont, USA

Dimensions: 4 mm x 4 mm x 30 mm
Largest Crystal Size: 3 cm

A beautifully lustrous crystal of brown red Rutile.

Found in a Pegmatic Quartz outcrop within a Layered Biotite-quartz-plagioclase gneiss formation of the Mount Holly Complex in the woods near Lake Whitingham.

Photo ID: 633174 Uploaded by: John Mark Brigham Upload date: 2014-08-26 View Count: 329 Status: Public galleries Type: Photo - 3264×2448 (8.0 Mpix)

Q87-75A Malachite Cu₂(CO₃)(OH)₂

Loudville Lead Mines, Easthampton, Hampshire County, Massachusetts, USA

Field of View: 3 mm

Malachite crystal in quartz.

Photo ID: 581928 Uploaded by: John Mark Brigham Upload date: 2013-12-27 View Count: 188 Status: Public galleries Type: Photo - 640×480 (0.3 Mpix)

VC7-EUG Wulfenite Pb(MoO₄)

Loudville Lead Mines, Easthampton, Hampshire County, Massachusetts, USA

Field of View: 3 mm

Two tiny Wulfenite crystals from the Loudville mineral collecting area.

Photo ID: 580397 Uploaded by: John Mark Brigham Upload date: 2013-12-18 View Count: 147 Status: Public galleries Type: Photo - 640×480 (0.3 Mpix)

Old Molybdenum Prospect

Granite Hill, Cuttingsville, Shrewsbury, Rutland County, Vermont, USA

An old molybdenum prospect on top of Granite Hill in Cuttingsville. Site is filled with water.

Photo ID: 542392 Uploaded by: John Mark Brigham Upload date: 2013-06-27 View Count: 451 Status: Public galleries Type: Photo - 639×852 (0.5 Mpix)

EQ8-93U Pecoraite Ni₃(Si₂O₅)(OH)₄ , Serpentine Subgroup D₃[Si₂O₅](OH)₄

Belvidere Mountain Quarries, Lowell & Eden, Orleans & Lamoille Cos., Vermont, USA

Ruler for scale.

Found in a riverbed in Eden Vermont near Lake Eden. XRD analysis has concluded that the mineral is Pecoraite.

Photo ID: 523186 Uploaded by: John Mark Brigham Upload date: 2013-03-22 View Count: 645 Status: Public galleries Type: Photo - 3071×2401 (7.4 Mpix)

20U-CY4 Actinolite-Tremolite Series, Calcite CaCO₃ , Quartz SiO₂

Whitingham, Windham County, Vermont, USA

Approx H:4in x W:12in x D:10in

Collected on the shore of Lake Whitingham from a calc-silicate gneiss formation labeled as "Y2cs" on the 2011 bedrock geologic map of Vermont. The rock has a peculiar round mass of marble in the middle, surrounded by Quartz and well formed actinolite-tremolite crystals up to a few centimeters in length. There is considerable weathering, and some iron oxides are developing in sports.

Photo ID: 506297 Uploaded by: John Mark Brigham Upload date: 2012-12-27 View Count: 383 Status: Public galleries Type: Photo - 1031×1281 (1.3 Mpix)

N4G-LX0 Rozenite FeSO₄·4H₂O

Whitingham, Windham County, Vermont, USA

Approx H:20cm x W:50cm x D:50cm

Specimen found on the cross country ski trails near Harriman Dam in Whitingham. There are numerous masses of aggregates in crevices and overhangs. The bedrock is a rusty-green weathering micacious schist with small pieces of black tourmaline. It was exposed by blasting during the construction of the Harriman Reservoir in the 1920s. May also contain considerable amounts of Epsomite.

Photo ID: 505530 Uploaded by: John Mark Brigham Upload date: 2012-12-24 View Count: 374 Status: Public galleries Type: Photo - 1920×1080 (2.1 Mpix)