Large, 2"+ Botryoidal Chalcedony Nodules From Morocco

These are interesting chalcedony nodules collected in the Western Sahara region of Morocco. They are large sized for these nodules, ranging from 2" to 2 1/2" wide. The nodules feature blackish botryoidal forms with whitish areas, some with some visible crystallization.

The photos are representative of the specimens you will receive but don't picture the exact ones. They vary significantly in exact shape and patterning. Quantity discounts available.

Chalcedony is any microcrystalline variety of silica composed of very fine intergrowths of quartz and moganite. Microcrystalline meaning the crystals are microscopic and cannot be observed by the naked eye. Both quartz and moganite have the same chemical formula SiO2 (silicon dioxide) but different crystal structures. When free from impurities, chalcedony is colorless and transparent. Dependent on impurities present during formation, chalcedony can form in a wide variety of colors including red, yellow, green, blue, purple, grey, white and numerous color hues in between. Chalcedony is quite hard, being a 7 on the Mohs Hardness Scale, which makes sense considering quartz is the benchmark mineral for a 7.

$7 $6.25

Quantity Discounts

3 to 9 Pieces

$6 $5

10+ Pieces

$5 $4.75

MINERAL

Quartz var. Chalcedony

LOCATION

Bu Craa, Laâyoune Cercle, Laâyoune Province, Laâyoune-Sakia El Hamra Region, Morocco

SIZE

2 to 2 1/2" wide