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2. Scoria - Wikipedia

   en.wikipedia.org/wiki/Scoria

   Scoria is a pyroclastic, highly vesicular, dark-colored volcanic rock formed by ejection from a volcano as a molten blob and cooled in the air to form discrete grains called clasts. [1] [2] It is typically dark in color (brown, black or purplish-red), and basaltic or andesitic in composition.

3. Volcanic rock - Wikipedia

   en.wikipedia.org/wiki/Volcanic_rock

   Volcanic rocks (often shortened to volcanics in scientific contexts) are rocks formed from lava erupted from a volcano. Like all rock types, the concept of volcanic rock is artificial, and in nature volcanic rocks grade into hypabyssal and metamorphic rocks and constitute an important element of some sediments and sedimentary rocks. For these ...

4. List of rock types - Wikipedia

   en.wikipedia.org/wiki/List_of_rock_types

   Trachybasalt – Volcanic rock – A volcanic rock with a composition between basalt and trachyte Hawaiite – Volcanic rock – a sodic type of trachybasalt, typically formed by ocean island volcanism; Trachyte – Extrusive igneous rock – A silica-undersaturated volcanic rock; essentially a feldspathoid-bearing rhyolite

5. 21 Creative Ways to Use Rocks in Your Landscaping - AOL

   www.aol.com/21-creative-ways-rocks-landscaping...

   Here are 21 front yard landscaping ideas with rocks, stone, and mulch to get you started. For more landscaping inspiration: 8 5 Landscaping Ideas for an Enchanting Outdoor Space

6. AP PHOTOS: Rivers and fountains of red-gold volcanic lava ...

   www.aol.com/news/ap-photos-rivers-fountains-red...

   Rivers of lava spewed from a fissure in the mountainside, snaking downwards and erupting in fountains of red and gold molten rock when the Fagradalsfjall volcano erupted this week in a fishing ...

7. Red Hill volcanic field - Wikipedia

   en.wikipedia.org/wiki/Red_Hill_volcanic_field

   The field is part of the Jemez Lineament, a zone of young volcanic fields stretching from central Arizona to northeastern New Mexico. Ar-Ar dating of rock from the Red Hill volcanic field reveals that it was erupted in two pulses, from 7.9-5.2 million years ago and from 2.5 to 0.071 Mya. The older activity was along a narrow zone roughly ...