That's because they are crystalline in nature and they luster.
mica
Sedimentary rocks are typically dull in appearance due to their fine-grained texture and lack of large crystals. Shiny rocks are more commonly associated with igneous or metamorphic rocks that have undergone recrystallization processes.
To make landscape rocks shiny, you can apply a coat of clear sealant or polish specifically designed for rocks. This will enhance their natural colors and give them a glossy finish.
i think that igneous and metamorphic rocks uses luster because maybe they have it in them
Sedimentary rock can sometimes appear shiny, but this depends on its mineral composition and the presence of specific components like mica or quartz. Some sedimentary rocks, such as shale, can have a slight sheen due to fine particles, while others, like sandstone, may be more matte. Overall, the shiny appearance is not a defining characteristic of sedimentary rocks.
Intrusive igneous rocks, such as granite, have shiny appearances due to the presence of minerals like quartz and feldspar with reflective surfaces. These minerals can form large, interlocking crystals within the rock, which reflect light and give the rock a shiny or sparkly appearance.
they dont
The shiny specks found in many different rocks are often minerals such as mica, quartz, or pyrite. Mica is known for its shimmering appearance and is commonly found in metamorphic rocks, while quartz can appear as shiny grains in various rock types. Pyrite, also known as "fool's gold," has a metallic luster and can be found in sedimentary and metamorphic rocks. These minerals contribute to the visual appeal and texture of the rocks they inhabit.
Rock smash silly.
yes it does because of the heat and light from the sun.
because if the metamorphic rocks are big they will shrink
The rocks amber and obsidian can be clear in polished thin specimens. Many minerals are shiny and clear in pure crystalline form.