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Trevor Boyd's Photo Gallery

YPY-D3FChromitite

06091120017057778857909.jpg
Hagdale Quarry, Unst, Shetland Islands, Scotland, UK

Dimensions: 45 mm x 33 mm x 25 mm

A nice example of the rock type chromitite consisting of lustrous dark chromite inclusions set in a light green serpentine matrix.

Specimen and photo - Trevor Boyd/ Causeway Minerals
Copyright: © Trevor Boyd/Causeway Minerals      Photo ID: 1345298     Uploaded by: Trevor Boyd   Upload date: 2024-01-09   View Count: 41    Status: Public galleries    Type: Photo - 1788×1324 (2.4 Mpix)

J3K-TTJGalena PbS , Fluorite CaF2 , Cerussite PbCO3 , Anglesite PbSO4

Multiple photos available
01420140017056606617956.jpg
Hilton Mine, Scordale, Murton, Eden, Cumbria, England, UK

Dimensions: 27 mm x 15 mm x 15 mm

Matrix with a small cavity lined with iron oxide stained fluorite crystals with small, grey galena crystals and a few colourless cerussite & anglesite crystals.

Photo/specimen - Trevor Boyd/Causeway Minerals.
Copyright: © Trevor Boyd/Causeway Minerals      Photo ID: 1344478     Uploaded by: Trevor Boyd   Upload date: 2024-01-05   View Count: 26    Status: Public galleries    Type: Photo - 1635×1406 (2.3 Mpix)

TQJ-5HAAllophane (Al2O3)(SiO2)1.3-2·2.5-3H2O , Brochantite Cu4(SO4)(OH)6

01570740017057820682468.jpg
New East Wheal Russell, Gulworthy, West Devon, Devon, England, UK

Dimensions: 33 mm x 18 mm x 17 mm

Light blue, botryoidal allophone coating small quartz crystals with associated dark green brochantite.

Specimen/photo - Trevor Boyd/Causeway Minerals.
Copyright: © Trevor Boyd/Causeway Minerals      Photo ID: 1344477     Uploaded by: Trevor Boyd   Upload date: 2024-01-05   View Count: 32    Status: Public galleries    Type: Photo - 1229×1588 (2.0 Mpix)

9GT-YX4Schorl NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)

01779720017056731658274.jpg
Megiliggar Rocks, Breage, Cornwall, England, UK

Dimensions: 62 mm x 61 mm x 40 mm

Quartz and orthoclase pegmatite shot through with long dark schorl crystals.

Photo & specimen - Causeway Minerals
Copyright: © Trevor Boyd/Causeway Minerals      Photo ID: 1319551     Uploaded by: Trevor Boyd   Upload date: 2023-09-08   View Count: 23    Status: Public galleries    Type: Photo - 3002×2664 (8.0 Mpix)

NA9-WUMMuscovite KAl2(AlSi3O10)(OH)2

04313330017057046181266.jpg
Megiliggar Rocks, Breage, Cornwall, England, UK

Dimensions: 45 mm x 30 mm x 25 mm

A nice partial muscovite mica crystal on matrix.

Photo and specimen - Trevor Boyd/ Causeway Minerals
Copyright: © Trevor Boyd/ Causeway Minerals      Photo ID: 1240564     Uploaded by: Trevor Boyd   Upload date: 2022-08-26   View Count: 23    Status: Public galleries    Type: Photo - 1988×2268 (4.5 Mpix)

H98-08GAzurite Cu3(CO3)2(OH)2

04930200017057036343702.jpg
Billy Bank Veins, Richmond, Richmondshire, North Yorkshire, England, UK

Field of View: 20 mm

Small blue azurite 'balls' on matrix associated with micro azurite crystal clusters. FOV 20mm

Photo/specimen - Trevor Boyd/Causeway Minerals
Copyright: © Trevor Boyd/ Causeway Minerals      Photo ID: 1232788     Uploaded by: Trevor Boyd   Upload date: 2022-07-21   View Count: 37    Status: Public galleries    Type: Photo - 1096×1301 (1.4 Mpix)

NPT-508Opal SiO2·nH2O

01505750017055931343954.jpg
Cathedral Mine, Busveal, St Day, Cornwall, England, UK

Dimensions: 25 mm x 22 mm x 20 mm

Waxy, white opal in matrix.

Photo & specimen - Trevor Boyd/Causeway Minerals
Copyright: © Trevor Boyd/ Causeway Minerals      Photo ID: 1223886     Uploaded by: Trevor Boyd   Upload date: 2022-06-10   View Count: 25    Status: Public galleries    Type: Photo - 1997×1710 (3.4 Mpix)

L50-1TYFluorite CaF2 , Baryte BaSO4

06537950017057820691874.jpg
Wapping Mine, Matlock Bath, Derbyshire Dales District, Derbyshire, England, UK

Dimensions: 37 mm x 25 mm x 23 mm

Colourless cubic fluorite crystals with modified edges associated with tan coloured clusters of cockscomb baryte crystals.

Specimen and image - Trevor Boyd/ Causeway Minerals
Copyright: © Trevor Boyd/ Causeway Minerals      Photo ID: 1223485     Uploaded by: Trevor Boyd   Upload date: 2022-06-08   View Count: 30    Status: Public galleries    Type: Photo - 2668×2005 (5.3 Mpix)

JAE-54YWitherite BaCO3

09187700017057739482625.jpg
Sir Francis Level, Lownathwaite Mine, Gunnerside Gill, Melbecks, Richmondshire, North Yorkshire, England, UK

Dimensions: 55 mm x 53 mm x 45 mm

Rounded masses of yellow/green witherite crystals in matrix.

Specimen - John & Robert Lawson

Image - Trevor Boyd/Causeway Minerals
Copyright: © Trevor Boyd/ Causeway Minerals      Photo ID: 1222697     Uploaded by: Trevor Boyd   Upload date: 2022-06-05   View Count: 27    Status: Public galleries    Type: Photo - 2874×2638 (7.6 Mpix)

0LK-DC0Tyrolite Ca2Cu9(AsO4)4(CO3)(OH)8·11H2O

02364770017057591407729.jpg
Plakalnitsa Mine, Balkan Mts, Vratsa Province, Bulgaria

Dimensions: 41 mm x 21 mm x 19 mm

Light blue radial clusters of tyrolite crystals with a botryoidal green mineral, possibly cornwallite.
Copyright: © Trevor Boyd/ Causeway Minerals      Photo ID: 1209008     Uploaded by: Trevor Boyd   Upload date: 2022-04-07   View Count: 55    Status: Public galleries    Type: Photo - 2544×1483 (3.8 Mpix)
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