• “Bringing The Past, Into the Future”
  • +44 (0) 1204 388754
Geology Superstore
Geology Superstore

9 results

 Filters
  • Sort by
    ...
Close
Categories
Price
Price: — Reset
  • Read more
    Amygdaloidal Basalt

    Amygdaloidal basalt is an igneous rock which is extrusive in nature, these specimens formed over 60 million years ago during the Tertiary period and come from Ireland. They are part of the Antrim lava group and exhibit a dark colouration with occurrences of amygdales containing quartz and calcite crystals. As a basalt they are somewhat dense, but lighter than pure samples due to the cavities within them which formed as a result of gaseous activity during their ejection. Over time, hydrothermal fluids pass through the rock and minerals form within the cavities, which gives the usually dark coloured rock a speckled appearance. These samples are available in various sizes and are suitable for higher educational use to detail the subtle differences between similar igneous rocks, they come supplied in a card tray with an information label.

    73 in stock

  • Read more
    Augite Granophyre

    Augite granophyre igneous rock specimens from Carrockfell, Keswick in Cumbria, UK. Excellent pieces exhibiting a medium grain size of crystals which constitute this rock including, augite, quartz and feldspars and shows a granophyric texture. Suitable for avid collectors and higher educational use, the samples come supplied in a sized card tray with an information label.

    89 in stock

  • Select options
    Biotite Granite £1.38 – £3.46 ex VAT
    Specimen Size
    2" x 2"3" x 2"4" x 3"

    Biotite granite igneous rock specimens from Ballachulish, Scotland, UK. Composed of the felsic minerals quartz and feldspar, with occurrences of biotite crystals. The rock has an overall white appearance due to its felsic chemistry but the black biotite mica offers a striking contrast in colours. The samples are ideal for both collectors due to the attractive nature and for college to university level education to describe the variations in granite which one may find. The samples are available in three sizes and supplied in a card tray with an information label.

    75 in stock

  • Read more
    Biotite Muscovite Granite

    Biotite muscovite granite specimens from St. Austell in Cornwall, UK of Permian age is a coarse grained igneous rock composed of quartz, plagioclase feldspar, biotite and muscovite. The rock is part of the St. Austell pluton which formed 280 million years ago. An off white colour with gold and black flecks of micas, the rock has a unique chemistry and resulted in the rich mineralisation of ores in the area. The samples are suitable for collectors and educational use to show granite variants, available in three sizes. Each piece will come supplied in a card tray with an information label.

    81 in stock

  • Select options
    Chalcedony (France) £3.45 – £24.15 ex VAT
    Specimen Size
    1.5" x 1.5"2" x 2"3" x 2"3" x 3"4" x 3"5" x 3.5"

    Specimens of chalcedony with quartz from Alabaster Coast, Normandy, France. These samples of chalcedony have a predominantly pale blue colouration with some inclusions of white and pale red material, some pieces also contain quartz crystal beds. These specimens are supplied in a white card tray with an information label.

  • Select options
    Lepidolite in Quartz (Scotland) £2.07 – £2.88 ex VAT
    Specimen Size
    1.5" x 1.5"2" x 2"

    Specimens of milky quartz containing small amounts of lepidolite mica from Glen Gairn, Strathdon, Aberdeenshire, Scotland. These samples of quartz contain a pale lilac lepidolite mica which has a massive form. These pieces, ideal for British mineral collectors, are supplied in a white card tray with an information label.

  • Sold Out
    Select options
    Quartz in Basalt (Scotland) £1.15 – £5.54 ex VAT
    Specimen Size
    1.5" x 1.5"2" x 2"3" x 2"4" x 3"

    Specimens of clear quartz crystal beds within basalt from Barras, Kincardineshire, Scotland. Pieces are supplied in a card tray with an information label. These are ideal samples for collectors of British minerals and rocks.

    Out of stock

  • Sold Out
    Select options
    Quartz Monzonite £1.27 – £3.57 ex VAT
    Specimen Size
    2" x 2"3" x 2"4" x 3"

    Quartz monzonite igneous rock specimen from Ratagan, Scotland. Associated to granites, yet containing only 5% to 20% quartz, making it a monzonite, these intrusive felsice rocks are igneous in origin and are available in different sizes, supplied in a white card tray with a label.

    Out of stock

  • Read more
    Trachyte

    Trachyte, a common igneous rock composed of various minerals including quartz, feldpsars, micas and olivine, rock specimens come from East Lothian, Scotland and are available in optional sizes, supplied in a card tray with a label.

    20 in stock

Close My Cart
Close Wishlist
Recently Viewed Close
Close

Close
Navigation
Categories