Halide Mineral Collection

Blue John vase
A vase carved out of the mineral Blue John. The mineral is so far unique to one location in the Derbyshire Peak District, England

Blue John
Polished slice of Blue John from Derbyshire, England. The mineral is so far unique to one location in the Derbyshire Peak District, England

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

Fluorite, pale green octahedron
With calcite, galena and pyrite. Its properties include fluorescence and cubed crystals. Specimen from Glengowla East mine, Oughterard, Co. Galway, Eire

Connellite
Deep-blue velvety crust of needles with some red cuprite. Connellite comprises of (hydrated copper sulphate chloride hydroxide). Specimen from Wheal Muttrell, Gwennap, Cornwall

Mendipite is exclusive to the Mendips of Somerset. This specimen is from Merehead Quarry. Mendipite belongs to the oxyhalides and hydroxyhalides group

Chlorargyrite is a mineral consisting of silver chloride

Blue John specimen
A compact banded variety of Fluorite known as Blue John, found only in Castleton, Derbyshire, England. Specimen on display at the Natural History Museum, London

Fluorite
6mm octahedral purple crystal on calcite collected from the Smith Vein, 1987. Green centre of the crystal does not show on film. Specimen from Carrock mine, Caldbeck, Cumbria

Yellow fluorite
A specimen of yellow fluorite (calcium fluoride) with white quartz (silicon dioxide) and brassy chalcopyrite, from Caradon Mines, Liskeard, Cornwall

Fluorescent group
A group including amber, ruby, ivory, fluorite and opal photographed in ultra violet light. See 179 for the same group in white light

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Halide minerals, such as Blue John, Fluorite, Connellite, Mendipite, and Galena, are captivating geological wonders that showcase the beauty of nature's intricate formations. The mesmerizing Blue John vase stands as a testament to the allure of these halide minerals. Blue John is a rare variety of fluorite found only in Derbyshire, England. Its distinctive banded patterns create an enchanting display when crafted into ornamental objects like the renowned Blue John vase. This unique mineral captivates with its vibrant hues ranging from deep purples to rich yellows. A Blue John specimen reveals the true essence of this halide mineral - an exquisite blend of translucent layers that seem to dance under light. Its delicate yet robust structure makes it a prized gemstone for jewelry enthusiasts and collectors alike. Fluorite itself is another remarkable halide mineral known for its stunning range of colors. From pale green octahedrons to vivid purples and blues, each crystal formation tells a story millions of years in the making. Its fluorescence under ultraviolet light adds an extra touch of magic to this already captivating mineral. Connellite and Mendipite may not be as well-known as their counterparts but possess their own unique charm within the world of halides. Connellite showcases shades ranging from sky blue to turquoise while Mendipite displays a lustrous yellowish-brown hue. Halite or rock salt is one familiar example within this group; its cubic crystals often form impressive structures in underground salt deposits around the world. A seemingly ordinary substance takes on extraordinary forms when observed up close. Galena completes our journey through these fascinating minerals with its metallic silver-gray appearance and characteristic cubic crystal shape. As one of history's primary sources for lead ore extraction, Galena holds both historical significance and aesthetic appeal. Halide minerals offer us glimpses into Earth's geological marvels through their diverse colors, unique formations, and captivating properties.