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 Records. You must keep your records as long as they may be needed for the administration of any provision of the Internal Revenue Code. Keep records that support an item of income or a deduction appearing on a return until the period of limitations for the return runs out.his chapter explains the benefits of keeping records, what kinds of records you must keep, and how long you must keep them for federal tax purposes. Tax records are not the only type of records you need to keep for your farming business.