1. Caleareous tufa

2. Observations our groups observations indicate that it has bumps holes, its brown, and it looks like an meteorite. That is our observations.

3. Igneaus How is this rock formed They are formed by volcanoes. What are some of the characteristics of this rock type large crystals and small crystals. Common rocks of this type May display two grain sizes one much larger than the other. Obsidian rock Colton Scoria from Rock Hounds

4. Metamorphic Metamorphic rocks are formed by: If a volcano erupts if it doesn't have enough pressure for the magma to go up it hardens. And it forms into a metamorphic rock They maybe be shiny and hard .Met’s rock usually contain crystals. Commons type: Coal, Quartz, Marble, slate, Gneiss Rock hounds Schist Rock hounds Gneiss Rock hounds brandan

5. Sedimentary How rocks are formed Little pieces of earth get broken down and worn away. They are washed down stream and settle to the bottom of rivers, lakes, and oceans. Layer after layer the pieces of earth are deposited on top of each other overtime and form the rock. Characteristics It has a layered appearance, colored, and maybe even fossils. Other types of sedimentary rocks: Sandstone, Limestone, Shale, Conglomerate, Gypsum, Mudstone, Gneiss, Pumice, and Granite. Limestone From Rock Hounds by: austin

6. Conclousion We have come to a conclusion that our rock is a metamorphic type because it makes a low taping sound and it has a crystal in it.