Cryptocrystalline Collection

Jasper
A polished slab of jasper from Campsie Fells, Stirlingshire. Jasper is cryptocrystalline agate quartz (silicon dioxide)

Agate bowl, grey and white
Agate is a decorative variety of cryptocrystalline quartz (silicon dioxide). This bowl specimen is from the collections of the Natural History Museum, London

Picture No. 11050183
Flint Texas, USA Date:

Fortification agate
A section of fortification agate from Scurdie Ness. Agate is cryptocrystalline quartz. This specimen is from the collections held at the Natural History Museum, London

Agate C013 / 6529
Agate. Section through a specimen of agate from Middlefield, Scotland, UK. Agate is an aggregate of different forms of silica (SiO2) within a geode

Bloodstone or heliotrope carvings
These frogs were carved from bloodstone by Paul Dreher. Bloodstone is green agate containing speckles of red jasper. All these derive from the cryptocrystalline quartz group

Plate 3, fig 4 from Mineralienbuch
A illustration of a slice of polished brown jasper. Jasper is a variety of cryptocrystalline quartz (silicon dioxide). Plate 3, fig 4 from Mineralienbuch by F. A. Schmidt, Stuttgart 1855

Agate
A polished slice of agate from Uraguay. Agate (silicon dioxide) is a cryptocrystalline quartz

Mocha stone, sardonyx and agate
Mocha stone and sardonyx cameos resting on artificially dyed slabs of agate. All these varieties of chalcedony derive from the cryptocrystalline quartz group

Agate
A cut and polished section of brown banded agate from Brazil. Agate (silicon dioxide) is a cryptocrystalline quartz

Agate
A cut and polished section of blue agate from Idar-Oberstein, Germany. Agate (silicon dioxide) is a cryptocrystalline quartz

Potentilla nivea L. snow cinquefoil
Sketch 2, Newfoundland Volumes. From a collection of original drawings and sketches by Georg Dionysius Ehret (1708-1770). Held in the Botany Library at the Natural History Museum, London

Objects carved from nephrite jade
A bowl, cabochon, square seal and chinese carving in nephrite jade. Nephrite is actually not a mineral outright, but is a variety of the mineral actinolite

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Cryptocrystalline wonders captured in Picture No. 11050183: A mesmerizing display of nature's artistry unfolds as we delve into the world formations. Among them, the striking Jasper steals the spotlight with its intricate patterns and vibrant hues. An Agate bowl, adorned with shades of grey and white, showcases the delicate beauty hidden within these stones. Fortification agate reveals its captivating layers, resembling ancient castle walls guarding precious treasures. Delve deeper into this enchanting realm with Agate C013 / 6529, unveiling a kaleidoscope of colors that dance across its surface. Bloodstone or heliotrope carvings captivate our imagination with their deep green tones and mystical allure. The ethereal charm continues to unfold through Plate 3, fig 4 from Mineralienbuch – an exquisite portrayal of Agate's intricate designs. Chalcedony emerges as another gem within this cryptocrystalline family, showcasing a range of translucent hues that evoke serenity and tranquility. Mocha stone, sardonyx, and agate join forces to create a harmonious symphony of earthy tones – each piece telling a unique story waiting to be discovered. In this captivating journey through cryptocrystalline marvels like Agate, we witness nature's ability to transform ordinary rocks into extraordinary works of art.