Unlike most other French wines there is only one appellation of champagne - "Champagne". Anything labelled Champagne is produced in the Champagne region and conforms to the appellation standard.
There are just three grapes used to make Champagne. There are tiny quantities of a few other obscure grape varieties planted and legally included, but the vast bulk of champagne is composed of the three important champagne grapes. They are Pinot Noir, Pinot Meunier and Chardonnay. The first two are black grapes, the latter is a white grape.
The term Blanc de Blancs indicates champagne made solely from white grapes (Chardonnay) and Blanc de Noirs denotes champagne made solely from black grapes (Pinot Noir and Meunier).
Champagne/Sparkling Wine - white sparkling wine. Very dry (Natural), dry (brut), slightly sweet (extra Dry), sweet (sec and Demi-Sec). Sparkling wines can also be identified as Blanc de Blancs, wines made from white grapes, or Blanc de Noirs, wines produced from red grapes.
"Wine is Bottled Poetry" - Robert Louis Stevenson