[Pramāṇa](https://indike.org/pramana/) › [Physical](https://indike.org/pramana/inp) › [Artefacts](https://indike.org/pramana/inp.artefact) › [National Museum, New Delhi](https://indike.org/pramana/inp.artefact.nm) › Ornate crystal # Ornate crystal Dome shaped with square base. Except base completely engraved with geometrical patterns may be used as a yantra. - **Kind:** artefact - **Date:** 900–1099 CE --- Source: [https://indike.org/pramana/inp.artefact.nm.96-547](https://indike.org/pramana/inp.artefact.nm.96-547) · Pramāṇa