Question: Saint Mark Methodist Church is one of the few remaining Gothic Revival granite churches in Atlanta, Georgia, the architecture is notable for its use of which quartz monzonite dome monadnock and the site of Stone Mountain Park in Stone Mountain, Georgia?

Context paragraphs:
St. Mark United Methodist Church (Atlanta): Saint Mark Methodist Church is one of the few remaining Gothic Revival granite churches in Atlanta, Georgia.  The current building was constructed from 1902 to 1903 after the congregation of Merritts Avenue Methodist Church outgrew their old building.  The architecture is notable for its use of Stone Mountain granite, triple entrance portal, and pot-metal stained-glass windows.

Stone Mountain: Stone Mountain is a quartz monzonite dome monadnock and the site of Stone Mountain Park in Stone Mountain, Georgia.  At its summit, the elevation is 1686 ft MSL and 825 ft above the surrounding area.  Stone Mountain is well-known not only for its geology, but also for the enormous rock relief on its north face, the largest bas-relief in the world.  The carving depicts three Confederate figures during the Civil War: Jefferson Davis, Robert E. Lee and Stonewall Jackson.

Stone Mountain Airport: The Stone Mountain Airport (FAA LID: 00A) , later also known as Stone Mountain Britt Memorial Airport (after the owner's wife), was a small privately run public-use airport located in Stone Mountain, Georgia (east-northeast of the mountain) from around 1963 until 1996.  Used for general aviation, it had a paved runway of either 2700 ft or 3000 ft , and a "crosswind" grass runway of unknown length.  The fixed-base operator was Stone Mountain Aviation Inc.

Forrest L. Adair II Memorial Bridge: The Forrest L. Adair II Memorial Bridge is a bridge over West Park Place Boulevard on the southwestern edge of Mountain Park, northeast of Stone Mountain Park, in the north-central part of the U.S. state of Georgia.  The western part of the bridge is in the park's boundary in DeKalb County.  The bridge carries US 78/SR 10 (Stone Mountain Freeway).

KEC80: KEC80 is a NOAA Weather Radio station that serves the Atlanta metro area with 500 watts effective radiated power on 162.550 MHz.  Its radio transmitter is located east of the city atop Stone Mountain, with its radio antenna on the short tower owned by Georgia Public Broadcasting for transmitting WGTV TV 8, within state-owned Stone Mountain Park.  It is programmed from the National Weather Service forecast office at Falcon Field airport in Peachtree City, which was originally at Hartsfield International Airport (now Hartsfield-Jackson) in Atlanta.

Stone Mountain Tennis Center: The Stone Mountain Tennis Center was a tennis venue at Stone Mountain Park in Stone Mountain, Georgia, USA.  It was built to host the tennis events for the 1996 Summer Olympics and the 1996 Summer Paralympics, at a total cost of $22 million.  At the time of the Olympics, the complex included over 12,000 seats for tennis fans, a 50000 sqft plaza area located around the stadium, and a stadium court plus 15 additional outer courts.  The reconfigured stadium held 7,200 people, and two smaller courts seated 4,000 and 2,000.

Atlanta, Stone Mountain and Lithonia Railway: The Atlanta, Stone Mountain and Lithonia Railway (ASM&L) (reporting mark ASML) was a rock quarry railroad that began operations in 1909.  A "common carrier" railroad it had lines connecting to the Georgia Railroad and primarily served granite and gneiss quarries at Lithonia and at Stone Mountain in DeKalb County.  It operated 4 miles of track from Lithonia, Georgia, to a quarry near Rock Chapel, Georgia.

Stone Mountain (North Carolina): Stone Mountain is the centerpiece of Stone Mountain State Park.  It is a dome of exposed granite (specifically a quartz diorite to granodiorite) of Devonian age, which has intruded into the gneiss of the Precambrian Alligator Back Formation.  It rises sharply over 600 feet (183 m) above the surrounding terrain.  The mountain, which has an elevation of 2,305 feet (706 m) above sea level, is known for its barren sides and distinctive brown-gray color, and can be seen for miles.  The mountain offers some of the best rock climbing in North Carolina, and the park's creeks and streams feature excellent brook trout fishing.

Woodstock Quartz Monzonite: The Woodstock Quartz Monzonite is a Silurian or Ordovician quartz monzonite pluton in Baltimore County, Maryland.  It is described as a massive biotite-quartz monzonite which intrudes through the Baltimore Gneiss at a single locality surrounding the town of Granite, Maryland.

Quartz monzonite: Quartz monzonite or adamellite is an intrusive, felsic, igneous rock that has an approximately equal proportion of orthoclase and plagioclase feldspars.  It is typically a light colored phaneritic (coarse-grained) to porphyritic granitic rock.  The plagioclase is typically intermediate to sodic in composition, andesine to oligoclase.  Quartz is present in significant amounts.  Biotite and/or hornblende constitute the dark minerals.  Because of its coloring, it is often confused with granite, but whereas granite contains more than 20% quartz, quartz monzonite is only 5–20% quartz.  Rock with less than five percent quartz is classified as monzonite.  A rock with more alkali feldspar is a syenite whereas one with more plagioclase is a quartz diorite.  The fine grained volcanic rock equivalent of quartz monzonite is quartz latite.

Supporting paragraphs: St. Mark United Methodist Church (Atlanta) Stone Mountain
Answer: Stone Mountain