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Agate is recognised for banding in a chalcedony material. A pyramid may show curved bands, near-parallel lines or contrasting areas depending on how the rough was cut. The term multi-agate is less informative: it could mean several colours…

Both selenite and satin spar are names associated with gypsum varieties, but common retail satin spar has a fibrous, silky white appearance. Transparent plate-like selenite looks different. The catalogue should describe a fibrous white…

Orange calcite pyramids can have honey, peach or deeper orange areas, often crossed by pale bands. Their translucency can look inviting under side light. Calcite is a different material from quartz: a similar orange colour does not make an…

Pyrite is an iron sulphide mineral with a brassy metallic appearance. A carved pyramid may show fine grains, pits or small contrasting mineral areas instead of a perfectly mirror-flat gold surface. That texture can be part of the material,…

Carnelian is a chalcedony material valued for orange to reddish-brown colour and varying translucency. On a pyramid, thin edges may look lighter while the thick centre appears deeper. Pale clouds and bands can create an attractive visual…