Sunstone is a name used for feldspar showing an attractive glitter or sheen from reflective inclusions. Peach, orange and brown tones are common in carved offerings, but the name does not identify one exact chemical composition or a country of origin. A pyramid’s faces may show different amounts of sparkle because the inclusions reflect light directionally.
Choosing this material or design
Goldstone is a manufactured glass material, often with bright metallic-looking particles. It can be decorative, but it should not be presented as natural sunstone. Uniform sparkle is a reason to seek a precise description, not a conclusive home test. Ask whether the material is feldspar or glass and what the supplier knows about treatments.
Care before display
Keep the pyramid from knocking against hard objects and do not press on the apex while wiping. Use a clean soft cloth; light moisture may be suitable when treatments and repairs permit it. Avoid steam, ultrasonic cleaners and sudden temperature changes. Wrap the piece separately so its faces cannot rub against neighbouring carvings.
Buying questions
Must all sunstone glitter strongly? No: the amount and visibility of inclusions vary. Is goldstone another natural variety? No: the familiar decorative goldstone is manufactured glass. Does orange colour identify the feldspar species? No. Ask for material naming and a neutral-light image before comparing different offers.
Read the Sunstone pyramid guide and Natural, Treated and Manufactured Pyramid Materials: A Buyer's Guide.

