Yes, Agate Jellyfish Semiprecious Stone can be used indoors for a variety of purposes. It is commonly used in home decor, such as tabletops, countertops, backsplashes, and wall claddings. Agate Jellyfish Semiprecious Stone can also be used in sculptures, mosaics, and as decorative accents. Its natural beauty and unique patterns make it a popular choice for indoor applications.

I do not have knowledge of the durability of Agate Jellyfish Semiprecious Stone in humid and hot environments. However, it is recommended to consult with a stone specialist or the stone supplier regarding the suitability of this stone for exterior applications in very sunny climates. They can provide information on the stones composition and its ability to withstand different weather conditions.

Agate jellyfish semiprecious stone is a combination of agate and jellyfish fossils. While it is a beautiful and unique stone, it may not be suitable for heavy use areas. Agate is classified as a 7 on the Mohs scale of mineral hardness, which means it is relatively durable but still susceptible to scratching and chipping. Additionally, the incorporation of jellyfish fossils may make the stone more delicate and prone to damage. Therefore, it is generally recommended to use more durable materials such as granite, quartz, or porcelain in heavy use areas to ensure longevity and minimize maintenance.