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Highway 15 roadcut, Portland, Leeds and Grenville Co., Ontario, Canada

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Calcite : CaCO3

Highway 15 roadcut, Portland, Leeds and Grenville Co., Ontario, Canada

Micro Calcite crystals.
 © A. SteinburgPhoto ID: 30733    View Count: 361

Diopside : CaMg[Si2O6]

Highway 15 roadcut, Portland, Leeds and Grenville Co., Ontario, Canada

4cm crystal in calcite
 © A. SteinburgPhoto ID: 30734    View Count: 390

Dravite : [Na][Mg3][Al6][(OH)3|OH|(BO3)3|Si6O18]

Highway 15 roadcut, Portland, Leeds and Grenville Co., Ontario, Canada

Dravite Tourmaline approximately 2cm on calcite with graphite flakes.
 © A. SteinburgPhoto ID: 30768    View Count: 509

Elbaite : [Na][(Li,Al)3][Al6][(OH)3|OH|(BO3)3|Si6O18]

Highway 15 roadcut, Portland, Leeds and Grenville Co., Ontario, Canada

Granular Elbaite intermixed with larger single crystals. Portland Prospect.
 © A. SteinburgPhoto ID: 30792    View Count: 379

Wollastonite : Ca[SiO3]

Highway 15 roadcut, Portland, Leeds and Grenville Co., Ontario, Canada

3cm x 2cm specimen of Wollastonite under Shortwave UV.
 © A. SteinburgPhoto ID: 31030    View Count: 537
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