Jay Vonderhey's Photo Gallery

UX2-9A4Dravite NaMg₃Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH) , Quartz SiO₂

Power's Farm, Pierrepont, St. Lawrence County, New York, USA

Dimensions: 30 cm x 14 cm x 10 cm
Largest Crystal Size: 6.5 cm

Several lustrous black dravite crystals attached to and intergrown with poorly formed milky quartz crystals. Largest dravite crystal measures 6.5 x 6 x 6 cm.
Specimen measures 30 x 14 x 10 cm overall.
Collected from the main "top of the hill" collecting area of the Powers Farm locality, August, 2013.

KRL-2XJGoethite α-Fe³⁺O(OH) , Dravite NaMg₃Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH) , Quartz SiO₂

Power's Farm, Pierrepont, St. Lawrence County, New York, USA

Dimensions: 12 mm x 10 mm x 6 mm
Field of View: 20 mm
Largest Crystal Size: 3 cm

Goethite pseudomorph after pyrrhotite. Crystal measures 1.4 x .5 x .5 cm. Associated minerals include Dravite, phlogopite, quartz, and calcite.
Overall specimen size: 12 x 10 x 6 cm. Collected from the main "top of the hill" collecting area of the Powers Farm locality, August, 2014.

VEJ-EMAQuartz SiO₂

Power's Farm, Pierrepont, St. Lawrence County, New York, USA

Dimensions: 10 cm x 8 cm x 8 cm
Field of View: 4 cm
Largest Crystal Size: 2.5 cm

Light smoky quartz crystal, 2.5 x 1 x 1 cm. Specimen measures 10 x 8 x 8 cm overall. The crystal formed in a small cavity in massive calcite.
Collected from the main "top of the hill" collecting area of the Powers Farm locality, August, 2014.

52G-RCNFluorapatite Ca₅(PO₄)₃F , Calcite CaCO₃

Power's Farm, Pierrepont, St. Lawrence County, New York, USA

Dimensions: 8 cm x 4 cm x 4 cm
Largest Crystal Size: 3.5 cm

Light green fluorapatite crystal in calcite matrix. Fluorapatite crystal measures 3.2 x 1.6 x 1.5 cm. Associated minerals are white weathered calcite and dark brown phlogopite mica.
Collected from the main "top of the hill" collecting area of the Powers Farm locality, August, 2014.

DHX-5RACalcite CaCO₃

Medford Quarry, Medford, Carroll County, Maryland, USA

Dimensions: 12 cm x 8 cm x 8 cm

Scalenohedral calcite crystals with secondary rhombohedral growth on the terminations. Specimen measures 12 x 8 x 8 cm.

N5V-HG3Titanite CaTi(SiO₄)O , Microcline K(AlSi₃O₈) , Hornblende Root Name Group ◻Ca₂(Z²⁺₄Z³⁺)(AlSi₇O₂₂)(OH,F,Cl)₂

Bear Lake diggings, Monmouth Township, Highlands East Township, Haliburton County, Ontario, Canada

Dimensions: 17 cm x 11 cm x 11 cm

Large glossy black titanite crystal with tan microcline crystal on a matrix of hornblende and biotite crystals. This specimen measures 17 x 11 x 11 cm overall, the titanite crystal measures 7 x 6 x 2.5 cm.

7FR-6W7Calcite CaCO₃

Benchmark Quarry, St Johnsville, Montgomery County, New York, USA

Dimensions: 12 cm x 8 cm x 8 cm

Rhombohedral calcite crystal in a small vug in dolostone. Specimen measures 12 x 8 x 8 cm overall, the calcite crystal measures 2 cm.

5W4-28MQuartz (Var: Rock Crystal) SiO₂

Miller Mountain Mine, Blue Springs, Garland County, Arkansas, USA

Dimensions: 6.3 cm x 2.5 cm x 1 cm

Quartz crystal exhibiting faden growth. Collected at the Miller Mountain Mine. Measures 6.3 x 2.5 x 1 cm.

FJ2-DYEFluorapatite Ca₅(PO₄)₃F , Hornblende Root Name Group ◻Ca₂(Z²⁺₄Z³⁺)(AlSi₇O₂₂)(OH,F,Cl)₂

Bear Lake diggings, Monmouth Township, Highlands East Township, Haliburton County, Ontario, Canada

Dimensions: 18 cm x 5 cm x 10 cm

Green hexagonal apatite crystal intergrown with a large hornblende crystal. The hornblende measures 18 x 5 x 10 cm, the apatite measures 11 x 1.5 x 1.5 cm.

Q60-QN6Fluorapatite Ca₅(PO₄)₃F , Calcite CaCO₃

Bear Lake diggings, Monmouth Township, Highlands East Township, Haliburton County, Ontario, Canada

Dimensions: 7 cm x 6 cm x 3.5 cm

Green hexagonal doubly-terminated fluorapatite crystal attached to weathered calcite matrix. Measures 7 x 6 x 3.5 cm overall, the apatite crystal measures 3 x 1.5 cm.