Examples of metamorphic rocks include anthracite, quartzite, marble, slate, granulite, gneiss and schist. Anthracite is a type of coal with a high carbon count, few impurities and with a high luster (meaning it looks shiny). Marble is a metamorphic rock that is formed from the sedimentary rock limestone.ranulite is a metamorphic rock that is formed from the igneous rock basalt. Learn about sedimentary rocks, igneous rocks, other rocks and minerals or fossils. Make a fossil cast or check out our rock sorting lesson plan.
Typically, the IRS can come after your business for failing to report income for up to 6 years after your filing if the amount is greater than 25% of your businessâs gross income. If you filed for a deduction for a bad debt or worthless security, the IRS suggests you keep your supporting tax records for 7 years. Under these circumstances, you may generally wish to retain your supportive records for at least 7 years. Employment Tax Records.
How long to keep books & records. Type of record. How long they must be kept. Copies of tax receipts. Two years after the end of the year in which the donation was made. Financial records. Six years after the end of the most recent year to which they relate (or two years after registration is revoked.