Sodium Collection

Polished slab of labradorite
Labradorite (calcium sodium aluminum silicate) can seem dull and grey until the light hits correctly, then an array of colours can be observed glowing on the surface

Halite
Large cubes of halite (sodium chloride) which is a common resource of salt. This specimen is from Orenburg, Russia

Tourmaline cut stones see 666
A group of tourmaline cut stones. Tourmaline is the name given to a group of eleven minerals which all have a general chemical formula

Salt
A pillar of salt (Sodium Chloride) crystals

Birthstone Series: Lazurite

Gobbinsite comprises of (hydrated sodium potassium calcium aluminum silicate) and derives from the zeolite group. Specimen found nr. Black Cave, Island Magee, Co. Antrim

Lazurite comprises of (sodium calcium aluminum silicate sulphur sulphate). Due to its unique rich colour, it is a semi-precious stone and is often used in jewellery making

Wardite is comprised of hydrated sodium aluminum phosphate hydroxide. This bright green specimen has been deposited in variscite nodules

Heulandite crystal group on matrix, from Kilpatrick, Dumbartonshire. One of the group of Zeolites. Zeolites are microporous crystalline solids containing silicon, aluminium and oxygen

Jadeite crystal and cut stone
Jadeite comprises of (sodium aluminum iron silicate) and is actually not a mineral outright, but is a variety of the mineral actinolite. Specimens from the Natural History Museum, London

Kernite is composed of hydrated sodium borate hydroxide with transparent crystals. Kernite is also an important ore of borax. Specimen from the Natural History Museum, London

Cancrinite comprises of (sodium calcium aluminum silicate carbonate) and is one of the rarer members of the feldspathoid group. Specimen from the Natural History Museum, London

Stilbite comprises of (hydrated sodium calcium aluminum silicate) and derives from the Zeolite group. Specimen from the collections of The Natural History Museum, London

Thomsonite

Natrolite
A specimen of the mineral natrolite (Hydrated sodium aluminum silicate), of the group zeolite, from Neubauerberg, Bohemia

Labradorite carving

Labradorite
A close-up of the surface of a rich blue specimen of the mineral labradorite from labrador. Labradorite (calcium sodium aluminum silicate)

Arabian desert
The expansive salt flats of the Arabian desert, sabkha

Mesolite is comprised of (hydrated sodium calcium aluminum silicate). Its needle-like crystals formed inside a gas bubble in cooling volcanic rock

Lapis lazuli from Afghanistan
Polished slab of lapis lazuli containing some brassy-coloured pyrite. Lapis lazuli (sodium calcium aluminum silicate sulphur sulphate) is a rich blue opaque, semi-precious stone

Belt-hook in lapis lazuli
Carved chinese belt-hook on a piece of rough lapis lazuli from Badakhstan. Lapis lazuli (sodium calcium aluminum silicate sulphur sulphate) is a rich blue opaque, semi-precious stone

Lapis lazuli from Siberia
A polished slab of Siberian Lapis lazuli containing white calcite and some brassy pyrite. Lapis lazuli means blue rock, with the rich colour due to the sulphur in its composition

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