diff --git a/index.wiki b/index.wiki
index 8793a30..4347d72 100644
--- a/index.wiki
+++ b/index.wiki
@@ -36,7 +36,7 @@ _Ideas.md and Classes.md are encrypted, so these links will not work_
 * [[engineering/process|Process]] - The engineering process
 * [[engineering/mechanical|Mechanical]] - Mechanical Engineering
 
-=== Vehicles ===
+== Vehicles ==
 
 * [[tech/Ranger|Ford Ranger]]
 
diff --git a/sci/divergent.wiki b/sci/divergent.wiki
index c8b951c..0f9223e 100644
--- a/sci/divergent.wiki
+++ b/sci/divergent.wiki
@@ -4,3 +4,5 @@
 * all oceanic ridges are this boundry
 * At boundry magma rises and fill in the gap
   * forms basaltic rock
+* shallow earth quakes happen here
+* primarily happens in oceans
diff --git a/sci/geology.wiki b/sci/geology.wiki
index b9c8052..71c261d 100644
--- a/sci/geology.wiki
+++ b/sci/geology.wiki
@@ -6,9 +6,15 @@ The study of rocks and the earth's natural processes
 
 * [[converging]]
 * [[divergent]]
-* transform
+* [[transform]]
 
-== Ores ==
+== Ores and Minerals ==
+
+* [[minerals]]
+
+* [[sedimentary_rock]]
+* [[igneous_rock]]
+* [[metamorphic_rock]]
 
 === Iron ===
 
diff --git a/sci/metamorphic_rock.wiki b/sci/metamorphic_rock.wiki
new file mode 100644
index 0000000..bb82193
--- /dev/null
+++ b/sci/metamorphic_rock.wiki
@@ -0,0 +1,11 @@
+= Metamorphic rock =
+
+Rocks formed via chemical reactions to existing rock by placing them under
+extreme heat and pressure
+
+== Formation ==
+
+* existing rock of any type is placed under heat and pressure
+  * usually by burying it
+  * rock must NOT be melted in this process
+* can also form from folding in one direction and presence of water
diff --git a/sci/minerals.wiki b/sci/minerals.wiki
new file mode 100644
index 0000000..edeacf5
--- /dev/null
+++ b/sci/minerals.wiki
@@ -0,0 +1,25 @@
+= Minerals =
+
+A mineral is a solid, inorganic substance of natural occurrence.
+
+== Identification ==
+
+Properties of a mineral can be used to determine what it is, including
+
+* color
+* hardness
+* density
+* luster
+* fractures/cleavage
+* magnetic
+
+=== Hardness ===
+
+Moh's hardness scale is a relative scale to measure how hard a mineral is
+
+* 1 - talc
+* 2 - gypsum
+* 2.5 - fingernail
+* 3 - calcite
+* 7 - quartz
+* 10 - diamond
diff --git a/sci/sedimentary_rock.wiki b/sci/sedimentary_rock.wiki
new file mode 100644
index 0000000..0c85931
--- /dev/null
+++ b/sci/sedimentary_rock.wiki
@@ -0,0 +1,11 @@
+= Sedimentary rock =
+
+Rocks made of smaller peices of rocks, or sediments
+
+== Formation ==
+
+1) weathering of source rock
+2) erosion or removal of weathered material away from source
+3) transport of sediment (usually by rivers)
+4) deposition into low lying regions
+5) lithification (hardening) of the deposited sediment
diff --git a/sci/transform.wiki b/sci/transform.wiki
new file mode 100644
index 0000000..d6cd7ab
--- /dev/null
+++ b/sci/transform.wiki
@@ -0,0 +1,5 @@
+= Transform boundry =
+
+* two plates slide sideways with respect to each other
+* no volcanism along this boundry
+* most often form at offset oceanic ridge segments