Granite Stone Maintenance

Composition: Quartz, Feldspar (varies)
Hardness : Hard
Absorption : Varies - Oil, Water
Limitations : Absorbs oils and other liquids, brittle
Sealer : Sub-surface repellents - oil repellent type recommended
Cleaner: Neutral pH detergent or pure soap
Finish: None Normally - Wax OK
Notes: Granite is typical for kitchen countertops use. Sealing is recommended for most stones. Granite is the hardest of the polished stones commercially available and is used in high stress situations. Polished granite usually is more absorbent to liquids than many people suppose. Flamed granite surfaces are very absorbent due to the stress fractures in the stone caused by the flaming process and should be sealed if it is desired to maintain the original color and appearance of the stone over time.

More resources:
Marble Table
Terms are defined first followed by a table of 150 granites in alphabetical order which is the main part. The idea for this article was from my experience and observation of the frustration of consumers and the trade in the process of selection, use, care and maintenance of granite.
Granite Kitchen Island
The island granite is honed and color-enhanced for richness without sheen, which minimizes glare from overhead recessed lighting.