Bronze

Bronze is the internal mental pushing metal. An Allomancer burning bronze is able to detect the presence of Allomancy being used nearby, sounding like drum beats to the Seeker's ears. Feruchemists can use bronze to store wakefulness, and when used as a Hemalurgic spike, bronze steals Mental Allomantic powers.
Bronze is the alloy paired with copper in the Metallic Arts.
== Allomantic Use ==
A bronze Misting is known as a Seeker. When a Seeker burns bronze, they are able to detect nearby use of Allomancy or any other form of Kinetic Investiture. The Seeker feels pulses, like beats of a drum, emanating from the person burning a metal. These Allomantic pulses are related to the tone of Preservation, and would seem familiar, though strange, to a singer burning bronze.
With practice, a Seeker can distinguish metals from each other by pulse length (long pulses for internal metals, short for external metals), whether the beats seem to "push" or "pull" on the Seeker, and by a distinctive pattern to the pulses characteristic of their quadrant (Physical / Mental / Temporal / Enhancement). This is how it is known that tin is a Pulling metal while pewter is Pushing.
It is more difficult to distinguish pulse length differences (internal vs. external) than other aspects; Marsh says that it took him six months of practice gain the skill. Additionally, determining where pulses originate from takes some amount of practice, though Vin was able to do so instinctively.
A talented Seeker can glean additional information from minute changes in Allomantic pulses, including:
* Who a Soother or Rioter is targeting, and what emotions they intend to influence. 
* Whether an Allomancer is flaring their metals.
* Whether an Allomancer is running low on metals (though this is highly difficult).
Generally, the stronger and faster a metal is burned, the easier it is to detect. For example, pulses from flared metals are more noticeable, and a Seeker who could not ordinarily pierce copperclouds may be able to detect a duralumin or nicrosil-enhanced burn through one. 
=== Savantism ===
If someone were able to burn the amount of bronze needed to become an Allomantic savant with the metal, their range would be expanded and they might be able to pierce copperclouds depending on their relative strength. A savant would also be able to tell the difference between regular Allomancy and Compounding. Due to Seekers' tendency to constantly burn bronze, many have become savants unknowingly.
=== Detecting Other Investiture ===
It is possible for a skilled enough Seeker to detect the use of Feruchemy, though doing so is extremely difficult and requires a particular tweak. This is because Feruchemy is far more internal than Allomancy, which draws upon the external power of Preservation. 
Indeed, it is theoretically possible for bronze Allomancy to detect any kinetic Investiture, though static investiture is difficult to detect. Among other things, bronze can detect:
* The use of Surgebinding, including being able differentiate between Surges
* A Shardblade being summoned
* Stormlight held by a surgebinder
* The Rhythms of Roshar
* AonDor
* Awakening
* Shards or perpendicularities
== Feruchemical Use ==
A bronze Ferring is known as a Sentry. Bronze is used to store wakefulness. It allows the Sentry to stay awake for extended periods of time, or to heighten awareness. A Sentry filling a bronzemind becomes drowsy, and may sleep in a coma-like trance. It is the only type of metalmind a Feruchemist can store into while sleeping. Caffeine can be used to generate extra wakefulness, but it would feel different upon being tapped.
=== Compounding ===
A bronze Compounder would be able to use bronze to have a nearly infinite supply of a good night's sleep, and therefore would never need to sleep.
== Hemalurgic Use ==
When used as a Hemalurgic spike, bronze steals Mental Allomantic powers (zinc, brass, copper, and bronze).
=== Bind Points ===
* Allomantic Zinc: Allomantic zinc can be stolen by placing a bronze spike between two ribs.
* Allomantic Brass: Allomantic brass can be stolen by placing a bronze spike between two ribs.
* Allomantic Copper: Allomantic copper can be stolen by placing a bronze spike between two ribs, or through the heart.
* Allomantic Bronze: Allomantic bronze can be stolen by placing a bronze spike between two ribs, through the left earlobe, or through the upper arm.
== Fabrial Use ==
A fabrial with a bronze cage will create a warning fabrial.
== Notes ==
es:Bronce