COOKEITE ON QUARTZ
COOKEITE ON QUARTZ
SPECIMEN NR #:641
Cookeite is a mineral belonging to the silicate group and specifically the phyllosilicate subgroup, classified within the chlorite family, with the chemical formula LiAl4(Si3Al)O10(OH)8. This soft, low-density mineral exhibits a range of colors and features a crystalline structure composed of alternating layers of LiAl2(OH)6 and Al2O4(OH)2Si8O12, which can exist in multiple polytypes. Typically, cookeite is formed through the hydrothermal alteration of silicates found in pegmatites, occurring at relatively low temperatures, generally below 200 °C, and under varying pressure conditions.
Specimen details
Specimen details
The numbers under "variant" are the measurements in mm and weight in grams. Where known, the origin of the specimen is mentioned. The number at the end, is the specimen number in our collection. Colours may vary, due to photography.
Care
Care
It's important to know that many minerals can be effectively cleaned with water. However, before using any cleaning methods, such as dissolvers or ultrasound, please take the time to research online. Improper use of these techniques could potentially harm your specimen.
Shipping
Shipping
Shipping fees depend on the weight of your order and its destination, and they will be calculated at checkout. Not all platforms use the same rate. We will inform you about any rebates where possible. If you have any questions, feel free to reach out to us before placing your order. We strive to use the most economical shipping methods for your specimens and combine multiple orders to minimize costs. Please note that packaging is included in the shipping fees.
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