Rocks and Minerals
Showing 551–600 of 915 results
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Mimetite and Quartz from Old Sandbed Mine, Cumbria
£3.50 -
Mimetite from Arm O’Grain, Cumbria
£3.00 -
Mimetite from Brandy Gill Mine, Cumbria
£10.00 -
Mimetite from Clara Mine, Germany
£5.00 -
Mimetite from Penberthy Croft Mine, Cornwall
Price range: £2.50 through £4.00 -
Minyulite from Tom’s Quarry, Australia
Price range: £7.50 through £15.00 -
Mixite from Schmiedestollen dump, Germany
£25.00 -
Molybdenite and Schorl from Hingston Down Quarry, Cornwall
Price range: £15.00 through £25.00 -
Molybdenite from Carrock Mine, Cumbria
£7.50 -
Molybdenite from Hingston Down Quarry, Cornwall
£12.50 -
Molybdenite from Malmbjerg Mine, Greenland
£10.00 -
Molybdenite from Mont Saint-Hilaire, Canada
£2.50 -
Molybdenite from Toron Mines, Spain
£6.50 -
Molybdenite from Zinnwald, Germany
Price range: £5.00 through £6.00 -
Molybdenite specimens
£3.00 -
Montgomeryite from Montcada Hill Quarry, Spain
£7.50 - Updated
Mookaite Specimens
Price range: £3.00 through £10.00 -
Moroccan Quartz Geode specimens
£3.50 -
Mottramite from Mottram St Andrew, Cheshire
£5.00 -
Mottramite from Pim Hill Mine, Shropshire
£10.00 -
Mottramite from Tsumeb Mine, Namibia
£2.00 -
Mullite and Topaz from Emmelberg, Germany
£10.00 -
Mullite from Emmelberg, Germany
£6.50 -
Native Bismuth from Jáchymov, Czech Republic
£2.50 -
Natrolite and Phillipsite from Láz Hill mine, Hungary
£25.00 -
Natrolite from Mont Saint-Hilaire, Canada
£3.00 -
Nepheline and Calcite from Graulay quarry, Germany
£5.00 -
Nepheline from Town of Bancroft, Canada
£5.00 -
Nickeline from Cobalt area, Canada
Price range: £7.50 through £10.00 -
Obsidian Specimens / Rough (Apache Tear)
Price range: £0.65 through £2.50 -
Obsidian Specimens / Rough (Black)
£3.00 -
Obsidian Specimens / Rough (Mahogany)
Price range: £1.25 through £1.50 -
Obsidian Specimens / Rough (Snowflake)
Price range: £1.00 through £3.00 -
Obsidian specimens from Obsidian Ridge
£3.50 -
Oligoclase feldspar (Sunstone) from Sitasaongi mine, India
£5.00 -
Olivenite from Ting Tang Mine, Cornwall
£7.50 -
Olivenite from Wheal Gorland, Cornwall
Price range: £15.00 through £20.00 -
Olivenite from Wheal Unity, Cornwall
£10.00 -
Opal from Acari Mine, Peru
£5.00 -
Opal from Cabezo Negro de Tallante, Spain
£5.00 -
Opal Specimens – Hyalite (Opal-AN)
Price range: £1.50 through £5.00 -
Orthoclase Feldspar specimens from Norway
£1.50 -
Osumilite-Mg from Nickenicher Sattel, Germany
Price range: £10.00 through £20.00 -
Owyheeite and Sphalerite from Morey Mine, USA
£35.00 -
Paralaurionite and Lanarkite from Meadowfoot Smelter, Scotland
£3.50 -
Paralaurionite from Meadowfoot Smelter, Scotland
Price range: £5.00 through £7.50 -
Paranatrolite and Aegirine from Brenk, Germany
£10.00 -
Pararammelsbergite from Heimberg Quarry, Germany
£25.00 -
Parnauite and Strashimirite from Herren adit, Austria
£20.00 -
Parnauite and Strashimirite from Schwarzleo mining district, Austria
£15.00
Minerals are mostly naturally occurring, inorganic substances with a definite chemical composition and an ordered atomic structure.
Rocks are composed of one or more minerals, mineraloids, or organic materials. They are classified into three main types—igneous, sedimentary, and metamorphic—based on how they form.