diff --git a/src/core/conversion.rs b/src/core/conversion.rs
index 34486c4a..de4f177e 100644
--- a/src/core/conversion.rs
+++ b/src/core/conversion.rs
@@ -222,10 +222,9 @@ impl_from_into_asref_2D!(
 #[cfg(feature = "mint")]
 macro_rules! impl_from_into_mint_1D(
     ($($NRows: ident => $VT:ident [$SZ: expr]);* $(;)*) => {$(
-        impl<N, S> From<mint::$VT<N>> for Matrix<N, $NRows, U1, S>
+        impl<N> From<mint::$VT<N>> for MatrixMN<N, $NRows, U1>
         where N: Scalar,
-              S: OwnedStorage<N, $NRows, U1>,
-              S::Alloc: OwnedAllocator<N, $NRows, U1, S> {
+              DefaultAllocator: Allocator<N, $NRows, U1> {
             #[inline]
             fn from(v: mint::$VT<N>) -> Self {
                 unsafe {
@@ -239,8 +238,7 @@ macro_rules! impl_from_into_mint_1D(
 
         impl<N, S> Into<mint::$VT<N>> for Matrix<N, $NRows, U1, S>
         where N: Scalar,
-              S: OwnedStorage<N, $NRows, U1>,
-              S::Alloc: OwnedAllocator<N, $NRows, U1, S> {
+              S: ContiguousStorage<N, $NRows, U1> {
             #[inline]
             fn into(self) -> mint::$VT<N> {
                 unsafe {
@@ -254,8 +252,7 @@ macro_rules! impl_from_into_mint_1D(
 
         impl<N, S> AsRef<mint::$VT<N>> for Matrix<N, $NRows, U1, S>
         where N: Scalar,
-              S: OwnedStorage<N, $NRows, U1>,
-              S::Alloc: OwnedAllocator<N, $NRows, U1, S> {
+              S: ContiguousStorage<N, $NRows, U1> {
             #[inline]
             fn as_ref(&self) -> &mint::$VT<N> {
                 unsafe {
@@ -266,8 +263,7 @@ macro_rules! impl_from_into_mint_1D(
 
         impl<N, S> AsMut<mint::$VT<N>> for Matrix<N, $NRows, U1, S>
         where N: Scalar,
-              S: OwnedStorage<N, $NRows, U1>,
-              S::Alloc: OwnedAllocator<N, $NRows, U1, S> {
+              S: ContiguousStorageMut<N, $NRows, U1> {
             #[inline]
             fn as_mut(&mut self) -> &mut mint::$VT<N> {
                 unsafe {
@@ -289,10 +285,9 @@ impl_from_into_mint_1D!(
 #[cfg(feature = "mint")]
 macro_rules! impl_from_into_mint_2D(
     ($(($NRows: ty, $NCols: ty) => $MV:ident{ $($component:ident),* }[$SZRows: expr]);* $(;)*) => {$(
-        impl<N, S> From<mint::$MV<N>> for Matrix<N, $NRows, $NCols, S>
+        impl<N> From<mint::$MV<N>> for MatrixMN<N, $NRows, $NCols>
         where N: Scalar,
-              S: OwnedStorage<N, $NRows, $NCols>,
-              S::Alloc: OwnedAllocator<N, $NRows, $NCols, S> {
+              DefaultAllocator: Allocator<N, $NRows, $NCols> {
             #[inline]
             fn from(m: mint::$MV<N>) -> Self {
                 unsafe {
@@ -308,10 +303,9 @@ macro_rules! impl_from_into_mint_2D(
             }
         }
 
-        impl<N, S> Into<mint::$MV<N>> for Matrix<N, $NRows, $NCols, S>
+        impl<N> Into<mint::$MV<N>> for MatrixMN<N, $NRows, $NCols>
         where N: Scalar,
-              S: OwnedStorage<N, $NRows, $NCols>,
-              S::Alloc: OwnedAllocator<N, $NRows, $NCols, S> {
+              DefaultAllocator: Allocator<N, $NRows, $NCols> {
             #[inline]
             fn into(self) -> mint::$MV<N> {
                 unsafe {
diff --git a/src/geometry/quaternion_conversion.rs b/src/geometry/quaternion_conversion.rs
index 7f1e2c5e..67d02909 100644
--- a/src/geometry/quaternion_conversion.rs
+++ b/src/geometry/quaternion_conversion.rs
@@ -3,10 +3,11 @@ use num::Zero;
 use alga::general::{SubsetOf, SupersetOf, Real};
 use alga::linear::Rotation as AlgaRotation;
 
+#[cfg(feature = "mint")]
+use mint;
+
 use core::{Vector4, Matrix4};
 use core::dimension::U3;
-#[cfg(feature = "mint")]
-use core::storage::Storage;
 use geometry::{Quaternion, UnitQuaternion, Rotation, Isometry, Similarity,
                Transform, SuperTCategoryOf, TAffine, Translation,
                Rotation3, Point3};
@@ -173,19 +174,14 @@ impl<N1: Real, N2: Real + SupersetOf<N1>> SubsetOf<Matrix4<N2>> for UnitQuaterni
 }
 
 #[cfg(feature = "mint")]
-impl<N, S> From<mint::Quaternion<N>> for QuaternionBase<N, S>
-where
-    N: Real,
-    S: OwnedStorage<N, U4, U1>,
-    S::Alloc: OwnedAllocator<N, U4, U1, S> {
-
+impl<N: Real> From<mint::Quaternion<N>> for Quaternion<N> {
     fn from(q: mint::Quaternion<N>) -> Self {
-        QuaternionBase::new(q.s, q.v.x, q.v.y, q.v.z)
+        Quaternion::new(q.s, q.v.x, q.v.y, q.v.z)
     }
 }
 
 #[cfg(feature = "mint")]
-impl<N: Real, S: Storage<N, U4, U1>> Into<mint::Quaternion<N>> for QuaternionBase<N, S> {
+impl<N: Real> Into<mint::Quaternion<N>> for Quaternion<N> {
     fn into(self) -> mint::Quaternion<N> {
         mint::Quaternion {
             v: mint::Vector3 {
@@ -199,7 +195,7 @@ impl<N: Real, S: Storage<N, U4, U1>> Into<mint::Quaternion<N>> for QuaternionBas
 }
 
 #[cfg(feature = "mint")]
-impl<N: Real, S: Storage<N, U4, U1>> Into<mint::Quaternion<N>> for UnitQuaternionBase<N, S> {
+impl<N: Real> Into<mint::Quaternion<N>> for UnitQuaternion<N> {
     fn into(self) -> mint::Quaternion<N> {
         mint::Quaternion {
             v: mint::Vector3 {
diff --git a/src/geometry/rotation_conversion.rs b/src/geometry/rotation_conversion.rs
index 07ef9d81..9c37594f 100644
--- a/src/geometry/rotation_conversion.rs
+++ b/src/geometry/rotation_conversion.rs
@@ -3,6 +3,9 @@ use num::Zero;
 use alga::general::{Real, SubsetOf, SupersetOf};
 use alga::linear::Rotation as AlgaRotation;
 
+#[cfg(feature = "mint")]
+use mint;
+
 use core::{DefaultAllocator, MatrixN};
 use core::dimension::{DimName, DimNameSum, DimNameAdd, DimMin, U1};
 use core::allocator::Allocator;
@@ -22,8 +25,8 @@ use geometry::{Point, Translation, Rotation, UnitQuaternion, UnitComplex, Isomet
  * Rotation  -> Similarity
  * Rotation  -> Transform
  * Rotation  -> Matrix (homogeneous)
- * mint::EulerAngles -> RotationBase
- 
+ * mint::EulerAngles -> Rotation
+
 */
 
 
@@ -205,11 +208,7 @@ impl<N1, N2, D> SubsetOf<MatrixN<N2, DimNameSum<D, U1>>> for Rotation<N1, D>
 }
 
 #[cfg(feature = "mint")]
-impl<N, S> From<mint::EulerAngles<N, mint::IntraXYZ>> for  RotationBase<N, U3, S>
-where N: Real,
-      S: OwnedStorage<N, U3, U3>,
-      S::Alloc: OwnedAllocator<N, U3, U3, S> {
-
+impl<N: Real> From<mint::EulerAngles<N, mint::IntraXYZ>> for Rotation3<N> {
     fn from(euler: mint::EulerAngles<N, mint::IntraXYZ>) -> Self {
         Self::from_euler_angles(euler.a, euler.b, euler.c)
     }
diff --git a/tests/core/conversion.rs b/tests/core/conversion.rs
index 355dcb14..d2dfbcea 100644
--- a/tests/core/conversion.rs
+++ b/tests/core/conversion.rs
@@ -11,8 +11,6 @@ use na::{
     Matrix6x2, Matrix6x3, Matrix6x4, Matrix6x5,
     Point3, Translation3, Isometry3, Similarity3, Affine3,
     Projective3, Transform3, Rotation3, UnitQuaternion};
-#[cfg(feature = "mint")]
-use na::Quaternion;
 
 
 #[cfg(feature = "arbitrary")]
@@ -257,74 +255,3 @@ array_matrix_conversion!(
     array_matrix_conversion_6_5, Matrix6x5, (6, 5);
     array_matrix_conversion_6_6, Matrix6,   (6, 6);
 );
-
-#[cfg(feature = "mint")]
-macro_rules! mint_vector_conversion(
-    ($($mint_vector_conversion_i: ident, $Vector: ident, $SZ: expr);* $(;)*) => {$(
-        #[test]
-        fn $mint_vector_conversion_i() {
-            let v       = $Vector::from_fn(|i, _| i);
-            let mv: mint::$Vector<usize> = v.into();
-            let mv_ref: &mint::$Vector<usize> = v.as_ref();
-            let v2      = $Vector::from(mv);
-            let arr: [usize; $SZ] = mv.into();
-
-            for i in 0 .. $SZ {
-                assert_eq!(arr[i], i);
-            }
-
-            assert_eq!(&mv, mv_ref);
-            assert_eq!(v, v2);
-        }
-    )*}
-);
-
-#[cfg(feature = "mint")]
-mint_vector_conversion!(
-    mint_vector_conversion_2,  Vector2,  2;
-    mint_vector_conversion_3,  Vector3,  3;
-    mint_vector_conversion_4,  Vector4,  4;
-);
-
-
-#[test]
-fn mint_quaternion_conversions() {
-    let q = Quaternion::new(0.1f64, 0.2, 0.3, 0.4);
-    let mq: mint::Quaternion<f64> = q.into();
-    let q2 = Quaternion::from(mq);
-
-    assert_eq!(mq.v.x, q[0]);
-    assert_eq!(mq.v.y, q[1]);
-    assert_eq!(mq.v.z, q[2]);
-    assert_eq!(mq.s, q[3]);
-
-    assert_eq!(q, q2);
-}
-
-macro_rules! mint_matrix_conversion(
-    ($($mint_matrix_conversion_i_j: ident, $Matrix: ident, $Mint: ident, ($NRows: expr, $NCols: expr));* $(;)*) => {$(
-        #[test]
-        fn $mint_matrix_conversion_i_j() {
-            let m       = $Matrix::from_fn(|i, j| i * 10 + j);
-            let mm: mint::$Mint<usize> = m.into();
-            let m2      = $Matrix::from(mm);
-            let arr: [[usize; $NRows]; $NCols] = mm.into();
-
-            for i in 0 .. $NRows {
-                for j in 0 .. $NCols {
-                    assert_eq!(arr[j][i], i * 10 + j);
-                }
-            }
-
-            assert_eq!(m, m2);
-        }
-    )*}
-);
-
-mint_matrix_conversion!(
-    mint_matrix_conversion_2_2, Matrix2,   ColumnMatrix2,   (2, 2);
-    mint_matrix_conversion_3_2, Matrix3x2, ColumnMatrix3x2, (3, 2);
-    mint_matrix_conversion_3_3, Matrix3,   ColumnMatrix3,   (3, 3);
-    mint_matrix_conversion_4_3, Matrix4x3, ColumnMatrix4x3, (4, 3);
-    mint_matrix_conversion_4_4, Matrix4,   ColumnMatrix4,   (4, 4);
-);
diff --git a/tests/core/mint.rs b/tests/core/mint.rs
new file mode 100644
index 00000000..264d8209
--- /dev/null
+++ b/tests/core/mint.rs
@@ -0,0 +1,73 @@
+use mint;
+use na::{
+    Matrix2, Matrix3, Matrix4, Matrix3x2, Matrix4x3,
+    Quaternion, Vector2, Vector3, Vector4,
+};
+
+macro_rules! mint_vector_conversion(
+    ($($mint_vector_conversion_i: ident, $Vector: ident, $SZ: expr);* $(;)*) => {$(
+        #[test]
+        fn $mint_vector_conversion_i() {
+            let v       = $Vector::from_fn(|i, _| i);
+            let mv: mint::$Vector<usize> = v.into();
+            let mv_ref: &mint::$Vector<usize> = v.as_ref();
+            let v2      = $Vector::from(mv);
+            let arr: [usize; $SZ] = mv.into();
+
+            for i in 0 .. $SZ {
+                assert_eq!(arr[i], i);
+            }
+
+            assert_eq!(&mv, mv_ref);
+            assert_eq!(v, v2);
+        }
+    )*}
+);
+
+mint_vector_conversion!(
+    mint_vector_conversion_2,  Vector2,  2;
+    mint_vector_conversion_3,  Vector3,  3;
+    mint_vector_conversion_4,  Vector4,  4;
+);
+
+#[test]
+fn mint_quaternion_conversions() {
+    let q = Quaternion::new(0.1f64, 0.2, 0.3, 0.4);
+    let mq: mint::Quaternion<f64> = q.into();
+    let q2 = Quaternion::from(mq);
+
+    assert_eq!(mq.v.x, q[0]);
+    assert_eq!(mq.v.y, q[1]);
+    assert_eq!(mq.v.z, q[2]);
+    assert_eq!(mq.s, q[3]);
+
+    assert_eq!(q, q2);
+}
+
+macro_rules! mint_matrix_conversion(
+    ($($mint_matrix_conversion_i_j: ident, $Matrix: ident, $Mint: ident, ($NRows: expr, $NCols: expr));* $(;)*) => {$(
+        #[test]
+        fn $mint_matrix_conversion_i_j() {
+            let m       = $Matrix::from_fn(|i, j| i * 10 + j);
+            let mm: mint::$Mint<usize> = m.into();
+            let m2      = $Matrix::from(mm);
+            let arr: [[usize; $NRows]; $NCols] = mm.into();
+
+            for i in 0 .. $NRows {
+                for j in 0 .. $NCols {
+                    assert_eq!(arr[j][i], i * 10 + j);
+                }
+            }
+
+            assert_eq!(m, m2);
+        }
+    )*}
+);
+
+mint_matrix_conversion!(
+    mint_matrix_conversion_2_2, Matrix2,   ColumnMatrix2,   (2, 2);
+    mint_matrix_conversion_3_2, Matrix3x2, ColumnMatrix3x2, (3, 2);
+    mint_matrix_conversion_3_3, Matrix3,   ColumnMatrix3,   (3, 3);
+    mint_matrix_conversion_4_3, Matrix4x3, ColumnMatrix4x3, (4, 3);
+    mint_matrix_conversion_4_4, Matrix4,   ColumnMatrix4,   (4, 4);
+);
diff --git a/tests/core/mod.rs b/tests/core/mod.rs
index 95a54767..e8bac456 100644
--- a/tests/core/mod.rs
+++ b/tests/core/mod.rs
@@ -7,4 +7,4 @@ mod serde;
 #[cfg(feature = "abomonation-serialize")]
 mod abomonation;
 #[cfg(feature = "mint")]
-extern crate mint;
+mod mint;