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*Dimensions can be found in photos. Discover the beauty and complexity of this high-grade Sumatra Agate, sourced directly from the volcanic regions of Sumatra, Indonesia. Known for their bold colors, surreal banding patterns, and dramatic internal landscapes, Sumatra Agates are prized by collectors and lapidary artists around the world. This specimen has been professionally polished by Wandering Stones, bringing out its full depth, clarity, and natural geometric structure. The unique layering captures the geological history of Indonesia’s volcanic arc—formed through repeated silica infusions, temperature shifts, and micro-crystallization over millions of years. ⭐ Specimen Highlights • Authentic Sumatra Agate from Indonesia • Beautiful natural banding & patterning • Vibrant geological color zones (customize once you send colors) • Expertly polished to a glossy, museum-grade finish • Great for collectors, display cases, teaching collections, or photography • 100% natural – no dyes, no treatments 🔬 Geological Notes Sumatra Agates form in ancient volcanic deposits and are celebrated for their: • Intricate fortification banding • Transparent and semi-transparent chalcedony windows • Occasional plume or moss inclusions • Deep saturation caused by iron-rich volcanic fluids These agates are increasingly hard to source in high quality due to limited mining and rapidly declining availability in the field. 🎁 Ships Fast & Secure Wandering Stones packages all specimens with care using: • Impact-resistant padding • Secure boxing • Free protective specimen ID card ⸻ Sumatra agate, Indonesian agate, banded agate, chalcedony, polished agate, collector agate, rare agate, gemstone specimen, lapidary material, display crystal, natural agate, fortification agate, volcanic agate, mineral specimen, Wandering Stones, agate cab, cabbing slab, agate slice, high grade agate, agates for sale, agate collection, unique agate, colorful agate, chalcedony banding, crystal collector, rockhound, geological specimen ⸻ Condition: New Treatment: None (100% natural) Material: Agate / Chalcedony Origin: Sumatra, Indonesia Shape: Polished freeform Modified Item: No Hand-polished: Yes Great For: Collectors, display, study, photography, lapidary inspiration |