Peter Briscoe's Photo Gallery
AVK-FWHFluorite CaF2
Dimensions: 70 mm x 70 mm x 60 mm
Field of View: 22 mm
Largest Crystal Size: 9 mm
NKX-LDJMalachite Cu2(CO3)(OH)2
Dimensions: 73 mm x 64 mm x 35 mm
Field of View: 30 mm
8C2-NGGQuartz (Var: Amethyst) SiO2
Dimensions: 100 mm x 60 mm x 25 mm
Specimen size 100x60x25mm. Crystallised Scottish amethyst is quite rare and specimens like this are unusual. The sharp crystals up to 12mm form areas of pale and darker amethystine colours and occasionally crystal faces exhibit small spots of an iron mineral.
TLY-CW1Vesuvianite Ca19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
Dimensions: 70 mm x 65 mm x 45 mm
The middle of the crystals shows a deep wine colour but later growth has taken the form of parallel straw coloured acicular crystals creating a chatoyant -'cats eye' effect. Accompanied by rhombohedral calcite. Specimen size 70x65x45mm
CWV-2A5Topaz Al2(SiO4)(F,OH)2
Field of view 20x15mm. Mix of small feldspar and smoky quartz crystal from the Mourne Mountains within which there are 2 fine topaz crystals. The largest is a 13mm long transparent striated crystal, sharply formed and terminated with typical uneven faces.
GGM-F4UMillerite NiS , Pyrite FeS2
Dimensions: 58 mm x 45 mm x 28 mm
Specimen size 58x45x28mm. A choice specimen from this famous locality with the two larger vugs in the geode packed full of millerite sprays
AEG-G8QPyrite FeS2
Dimensions: 65 mm x 55 mm x 40 mm
Not the prettiest of specimens but attractive pyrites are suprisingly not common from Scotland. This is an excellent example of the pyrite from Goat quarry the occurrence of which featured in the UK Journal of Mines & Minerals issue No.11. Specimen size 65x55x40mm
L2E-TYHBaryte BaSO4
Dimensions: 62 mm x 50 mm x 45 mm
Specimen size 62x50x45mm. Superb spray of transparent amber coloured barite crystals approx 40mm in length pleasing positioned in a calcite lined cavity
VPD-5N9Hemimorphite Zn4Si2O7(OH)2·H2O
Dimensions: 50 mm x 35 mm x 27 mm
Rich hemimorphite coating of an intense green colour producing an attractive specimen from this classic locality. Specimen size 50x35x27mm
5CA-HDMHureaulite Mn2+5(PO3OH)2(PO4)2·4H2O , Correianevesite Fe2+Mn2+2(PO4)2·3H2O , Rockbridgeite Fe2+Fe3+4(PO4)3(OH)5
Dimensions: 52 mm x 36 mm x 25 mm
Exceptionally well crystallised pink Hureaulite crystals with a rib and a scattering of brown correianevesite crystals further complemented by an area of rockbridgeite. Specimen size 52x36x25mm.
