New Thorold quarry, Thorold Quarry, Thorold Township, Niagara Region, Ontario, Canada
Collected on a Walker Mineralogical Club trip. Biggest double terminated crystal is 24mm.
© Jeff Collens
Collected on a Walker Mineralogical Club trip. Biggest crystal is 20mm long.
Calcite crystals on bed of dolomite crystals. Collected by A.Debnam on A Walker mineralogical trip Oct 4 2015
© A.Debnam
dolomite crystals covered with a row of calcite crystals on dolstone. Collected by A.Debnam on A Walker mineralogical trip 2015.
Pink dolomite coated in marcasite.
Black Sphalerite crystal with white Dolomite. Collected on Walker Club Field Trip.
© Donald Lapham
© Maggie Wilson
Calcite crystals on a bed of dolomite. Calcite scalenohedron crystals exhibit stepped growth as did many from this location. Collected by A. Debnam on a Walker Mineralogical trip Oct 4 2015.
© A. Debnam
two sided piece of light yellow calcite on dolomite crystals on thin layer of dolostone. Collected by A.Debnam.
Large vug of pink Dolomite rhombs dotted with micro Marcasites. Scalenohedral Calcite crystals overlap parts of the Dolomite. The calcite fluoresces yellow under long wave UV. Collected on a Walker Mineralogical club trip.
A nice piece of pink dolomite coated in marcasite.
Collected on a Walker Mineralogical Club trip. Biggest double terminated crystal is 24mm long.
Collected on a Walker Mineralogical Club trip in the one vug of the day that was not contaminated with clay and mud.
Collected on a Walker Mineralogical Club trip. This was found in the one vug of the day that was not contaminated with clay or mud.
This one is hard to describe. Thin twisted-folded layers (2-3mm thick) covered in dolomite with small calcite crystals. Found in a dolostone vug. Collected by A.Debnam on a Walker mineralogical trip Oct 4 2015.
Yellow Calcite crystals in a vug partially filled with a Selenite crystal.
© D Lapham
Newly blasted material at the quarry wall. Taken Oct 04 on a Walker Mineralogical trip. The material contained a large amount of vugs lined with dolomite and calcite. Lat. 43 7 35 Long. 79 9 38