The document describes different types of sedimentary rocks including sandstone, shale, conglomerate, siltstone, limestone, chert, rock salt, chalk, coal. It provides details on their composition, texture, color and formation. Sandstone is composed of sand particles and matrix deposited in water. Shale is a laminated rock made of silt and clay. Conglomerate contains rounded rock fragments over 2mm. Siltstone contains fine grains and can form layers. Limestone forms from marine life shells. Chert is made of microcrystalline quartz. Rock salt consists of sodium chloride crystals. Chalk forms from marine organisms. Coal accumulates from preserved plant materials.

2. • A sedimentary rock consisting of sheets
of sand, mineral particles, and binding
matrix deposited one atop in water
environments and desert formations.
• Like sandpaper, sandstones usually
have a rough, granular texture.
• Brown, red, purple, and pink
sandstones are commonly called
brownstone
• A clastic type of sedimentary rock.

3. • A shale is a laminated or fissile
clastic sedimentary rock that composed
of predominance of silt and clay other
minerals , especially quartz and calcite.
• It characteristically contain fine-
grained silt and clay particles (<
0.063mm).
• If this fine-grained material lacks
layers, it is called mudstone or
claystone.
• These rocks are smooth to the touch.

4. • Conglomerate is a clastic sedimentary
rock made up of rounded clasts that are
greater than two millimeters in
diameter.
• The rounded clasts of conglomerate can
be mineral particles such as quartz
or feldspar, or they can be sedimentary,
metamorphic, or igneous rock fragments.
• A conglomerate rock will have a rough
texture
• A clastic type of sedimentary rock.

5. • Siltstone is a fine to medium-grained
sedimentary rock.
• It is pale grey or brown and quite soft.
Sometimes it contains thin layers
which are darker or lighter in color.
• It is hard and durable and do not easily
split into thin particles or layer.
• A clastic type of sedimentary rock.

6. • It is formed from chemical reactions
that combined iron and oxygen in
marine and fresh waters.
• It only occurs naturally in the earth's
crust.
• The ores are usually rich in iron oxides
and vary in color from dark grey, bright
yellow, or deep purple to rusty red.
• A chemical type of sedimentary rock.

7. • Chert is a sedimentary rock composed
of microcrystalline or cryptocrystalline
quartz, the mineral form of silicon
dioxide.
• It varies greatly in color (from white to
black), but most often manifests as
gray, brown, grayish brown and light
green to rusty red.
• It is a hard, aphanitic, non-clastic rock.
• A chemical type of sedimentary rock.

8. • Rock salt is the name of a sedimentary
rock that consists almost entirely of
halite, a mineral composed of sodium
chloride.
• It forms as isometric crystals and is
typically colorless or white, but may
also be other colors depending on the
amount and type of impurities
contained within it.
• A chemical type of sedimentary rock.

9. • Chalk is a variety of limestone
composed mainly of calcium carbonate
derived from the shells of tiny marine
animals known as foraminifera and
from the calcareous remains of marine
algae known as coccoliths.
• It is usually white or light gray in color.
• It is extremely porous, permeable, soft
and friable
• A biogenic type of sedimentary rock.

10. • Coal is an organic sedimentary rock
that forms from the accumulation and
preservation of plant materials, usually
in a swamp environment.
• Weathering often gives the coal a
greyish, yellowish, or rust-colored
coloring.
• It is rough in that it is a rock, but it has
a smooth, almost slippery quality as
well.
• A biogenic type of sedimentary rock.

11. Ramon Joseph G. Palabrica
Grade 11 - Pearl