Masonal Stone® Contemporary Collection - Midnight GraniteContemporary Collection Midnight Granite Masonal Stone has found creative ways to incorporate their midnight granite into many of new contemporary blends. A course grain gabbro is the actual classification for this stone but it is commonly known in the stone industry as black granite.. Thin Veneer Packaging: Please Note: Units must be purchased in full box quantities only. Flats 10 Sqft. Box 100 Sqft. Box 1000 Sqft. Bulk Corners 8 Lnft. 70 Lnft.